1- The element sodium has an atomic number of 11 and a
mass number of 12.
How many protons does sodium have?

Answers

Answer 1

Answer and Explanation:

Sodium has 11 protons.

To know how many protons are in an element on the periodic table, all you have to do is look at the atomic number. The atomic number is the same as the amount of protons.

The amount of protons defines the element, which is why it appears on the element description as the atomic number.

Hope this helps!

#teamtrees #WAP (Water And Plant)


Related Questions

Easy points. Chemistry question. Put the following molecules in order, from those that require the least energy to break
the carbon-carbon bond to those that require the most energy. Use the letters A, B, and C. Pls explain why

Answers

Molecule C requires the least energy, Molecule B requires more, and Molecule A requires the most.

Explanation:
Molecule C is made up of a triple bond, which requires the most energy to break. Molecule B is made up of a double bond which is not as strong as a triple bond therefore requiring less energy. Molecule A is made up of a single bond which is the least strong thus requiring the least amount of energy.

1. Which of the following components does not make up rock salt? *

Answers

Answer:

In my opinion the third one is write.

Explanation:

soil.

some help I’ll give brainliest

Answers

Answer: Meteoroid

Explanation:

Dwarf planets are smaller than moons

Comets are smaller than dwarf planets.

Meteoroids, Meteors, and Meteorites are broken off pieces of comets.

Meteoroids are smaller than Asteroids

Where are earthquakes and volcanos most likely to occur?


within oceanic plates


continental boundaries


plate boundaries


hot spots

Answers

continental plate boundaries

Answer:

continental plate boundaries

Explanation:

What is the mass of 6.25 moles of Ca(OH)2?

Answers

mass/moles x mr
so you need to work out the rfm of Ca(OH)2= 40(16+1)2= 40+34= 74
and then use the formula= moles x mr
6.25 x 74= 462.5
Answer= 462.5g

The half-life of plutonium-238 is 87.7 years.

What percentage of the atoms in a sample of plutonium-238 will remain radioactive after 263.1 years?
%



What percentage of the atoms in the same sample of plutonium-238 will have changed to another isotope after 263.1 years?
%

Answers

Answer:

263.1 is exactly three half-life, so the remaining portion is (1/2 x 1/2 x 1/2) of the original sample. That's 1/8 which is 12.5%

Answer:

12.5 87.5

Explanation:

What is the difference between the Lewis model and the valence-shell electron pair repulsion (VSEPR) model?
A.
Only the Lewis model shows the covalent bonds in a molecule.
B.
Only the VSEPR model can be used to explain intermolecular forces.
C.
Only the Lewis model takes into account unbonded electrons.
D.
Only the VSEPR model shows the geometric shape of a molecule.

Answers

Answer: only the VSEPR mode shows the geometric shape of a formula.

(HELP ME ASAP!)
Testing for Carbon Dioxide
Limewater is calcium hydroxide
solution, Ca(OH)2. It forms calcium
carbonate,CaCO3, and water when
it reacts with carbon dioxide.
limewater
a Write a word equation for this
b Why does limewater go milky
when carbon dioxide is bubbled
through it?

Answers

A) Ca(OH)2 + CO2 —> CaCO3 + H2O

B) when Ca(OH)2 is reacted with CO2, the CaCO3 produced is a precipitate which turns the solution milky

Describe one physical property and one chemical property of sodium that you observed.

Answers

Answer:

It's a soft metal, reactive and with a low melting point, with a relative density of 0,97 at 20ºC (68ºF). From the commercial point of view, sodium is the most important of all the alkaline metals. Sodium reacts quickly with water, and also with snow and ice, to produce sodium hydroxide and hydrogen.

Explanation:

Hope this Helps

Infectious agents vary in their size and shape. Which infectious agent tends to be the smallest?

Answers

Answer:

prions

Explanation:

They are the smallest infectious agent.

In what order are redox reactions balanced?

Answers

Answer:

B

Explanation:

Answer:

b

Explanation:

a p e x :)

Step 8 measuring the volume of air near 80C ANSWERS

Temp of Gas : 82C
Height of Column of gas : 7.4
Temp of Gas : 355 K
Volume of gas : .93 cm3

Answers

Answer:

The answer is in the picture below.

Explanation:

Answer:

basically the question asked is the answer

its correct :)

Explanation:

EDGE 2023

A student observes poor growth of plants in a garden containing high clay content. Clay content reduces drainage in soil. Which of these is the best method to improve plant growth in the garden?

A. water the plants once a month
B. add sand to the soil
C. mix soil with chemicals which absorb the air
D. do not dig or till the soil

Answers

Answer: Add sand to the soil

Explanation:

Just finished my test

Answer:

add more sand to the soil

Explanation:

Car and Motorcycle engines are controlled by what chemical reaction?

Answers

Water is two parts “H” and one part “O”. Car and motorcycle engines are controlled by what chemical reaction? Combined gasoline and oxygen in small controlled explosions.

Car and Motorcycle engines are controlled by a chemical reaction which is controlled by gasoline and oxygen.

What is a Chemical reaction?

A chemical reaction may be defined as a process that significantly involves the chemical transformation of one set of chemical substances to another. This process involves the utilization of substances known as reactants that are transformed into other substances known as products.

The fuel in cars and motorcycles delivers the source of energy to them in order to move from one place to another. This fuel significantly contains gasoline which reacts with atmospheric oxygen and results in a small explosion which derives some sort of energy that is finally consumed by the vehicle's engine.

Apart from this, the combustion of fuel is also facilitated in the presence of oxygen which liberates extremely high amounts of carbon dioxide in the atmosphere. This reaction has also occurred in the engines of vehicles.

Therefore, car and Motorcycle engines are controlled by a chemical reaction which is controlled by gasoline and oxygen.

To learn more about Chemical reactions, refer to the link:

https://brainly.com/question/11231920

#SPJ2

Complete the sentence: Cellular respiration occurs ________________.

only in plant cells
only in animal cells
only in chlorophyll
in plant and animal cells

Answers

Answer:

in plant and animal cells

Answer:

In plant and animal cells

Explanation:

Bonus question which of these is the smallest??

Answers

Answer:

Explanation:

Atoms

When examining features on the ocean floor, like a volcano, how would it appear?

severely eroded
only somewhat eroded
not eroded at all
barely eroded compared to land volcanoes

Answers

the answer is not eroded at all.

Answer:

barely eroded compared to land volcanoes

Explanation:

the other person is wrong

How can you convince someone that the earth moves slowly?

Answers

Answer:

By a resource or an EXTREMELY good explanation with good reasons and details.

Explanation:

What is the molar mass of the EF?

Answers

Answer:

47.778

Explanation:

Answer:

97.11 should be correct

explanation

EF = C4H5ON2

molar mass= 4 (12.01) + 5 (1.9) +16 + 2 (14.01) = 97.11 glmol

how would you describe life and why?​

Answers

Answer:

Life to me is like a long road that has no stopping point.

I tried, Hope this helps :)

Headaches forced onto me. I was forced out of the womb by two women. My mother and my mother's doctor. I was held in adults arms and I hated it. I had to do whatever they said. I had these diapers around my bo.oty and they were so uncomfortable. I got older and I don't know why I listened to country.  The only country song I like now is God Made Girls by Rae Lynn. I got older and started asking what inappropriate words meant. My parents told me the exact meanings and didn't censor. I was disgusted and stayed silent for hours. Now I'm my current age and I need to do about 5 math assignments each day all due at 11:59 pm or else they're missing and I have no excuses. I don't get them at all either there's not explanations.  In conclusion, life is headaches forced onto me.

please help me pls!!!

Answers

Answer:
It’s either C. or D.
Hope this helped

Sometimes a fossil is formed as a result of the movement of an organism in soft sediment. What type of fossil is this called? bone fossil trace fossil frozen fossil petrified fossil

Answers

Answer:

The most common method of fossilization is called permineralization, or petrification.

Answer:

Trace Fossil

Explanation:

typically formed when an organism moves over the surface of soft sediment and leaves an impression of its movement behind.

2.
If 2 moles of solid carbon dioxide
evaporates, how many liters of CO2
will be formed at a temperature
of 300 K and 2.00 atmospheres of
pressure?
F 98.5 liters
G 2170 liters
H 24.6 liters
J 1080 liters

Answers

Answer:2170

Explanation:

In a compound, what is this number called: H2O. Pretend it’s at the bottom of the element symbol but just the name of the number.
Thanks!

Answers

Answer:

It's the valence number of oxygen

Answer:

Mixture , element and Mass

The number of particles in one mole of a chemical substances is 602,200,000,000,000,000,000,000 particles. What is the correct way to write this number in scientific notation?

6022 x 10¹⁹
0.6022 x 10²⁴
60.22 x x10²²
6.022 x 10²³

Answers

The correct way to write this number in scientific notation : 6.022 x 10²³

Further explanation

Scientific Notation is a standard form of writing numbers used in mathematical operations

The rules:

1. Writing order : first digit, decimal point, next digit

2. Then followed by powers of 10 (the value can be +/-)

If the value is> 10 (the power of 10 is +), the decimal point is moved to the left, to the right of the first digit

If the value is <10 ((the power of 10 is -), the decimal point is moved to the right, to the right of the first digit

I certainly didn't count the details of the number of zeros listed, but only saw the answer choices.

And the right ones are: 6.022 x 10²³

Answer:

The answer is D! 100%!

Explanation:

999 Juice Wrld Told Me So, and the internet never lies.

How are you able to see cells?

Answers

Explanation:

you are to see cells By doing an experiment.

Liquid in a graduated cylinder has a volume of 70 mL. You put a small solid ball into the cylinder, and the height of the liquid moves up to 80 mL. What is the volume of the ball?

Answers

Yes sir








Have a nice day

What are these answers Please Help

Answers

Answer:

Electronic flow

Explanation:

Electronic Flow from one to another

With what noble gas is the cation in KNO2 isoelectronic?

Answers

Answer:

argon

For example, the K+ ion is isoelectronic with argon. Potassium has 19 electrons and 1 is in the outermost shell: a valence electron. If potassium is ionized and becomes a +1 cation, this is to say that it lost its single valence electron. This is favorable, because it gives potassium a noble gas configuration

(11....
1. Use the chart below to determine which element has the larger Zeff
value. Circle an answer for a-e:
a) Li or K b) C or O c) C or P d) C or Se e) Li or Br


Answers

Answer:

c

Explanation:

because chlorine and phosphorus

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