Ask question

Ask question

All categories

2 years ago

15

What is the number of valence electrons that most atoms prefer?

2 answers:

Nataly_w [17]2 years ago

4 0

Answer: 8 electrons

Explanation: Valence electrons are the electrons in the outermost shell of an atom and they are important in chemical reactions.

Atoms are <em>happy</em> when they follow the octet rule which states that 2 electrons can go in the first shell and 8 electrons can go in the other shells.

Electrons are happy when they have a full outer shell which usually needs to be 8 electrons. However, some of the smaller elements like helium are happy because they can hold a max of 2 electrons and helium has 2 electrons since it has 2 protons in its core as well as 2 electrons in its energy levels.

kifflom [539]2 years ago

3 0

The most that they all prefer is 8 valence electrons

You might be interested in

What would happen if you used a warm washcloth if you had a fever.

aivan3 [116]

You will feel way better because in our class we learned that lukewarm baths are good for fevers and warm washcloths :)

3 0

2 years ago

Mars is known as the ____ planet.<br><br> A) Blue<br> B) Gaseous<br> C) Red<br> D) Sandy

Leni [432]

Answer:

Of course it's C

Red planet

Explanation:

It is because the soil on Mars is rich of Fe (Iron).

That makes the soil look red.

Even on our planet we have such this places like hormuz island in Iran.

5 0

2 years ago

N2O5 decomposes to form NO2 and O2 with first-order kinetics. The initial concentration of N2O5 is 3.0 M and the reaction runs f

kow [346]

Answer : The final concentration of $N_2O_5$ is, 2.9 M

Explanation :

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $5.89\times 10^{-3}\text{ min}^{-1}$

t = time passed by the sample = 3.5 min

a = initial concentration of the reactant = 3.0 M

a - x = concentration left after decay process = ?

Now put all the given values in above equation, we get

$3.5=\frac{2.303}{5.89\times 10^{-3}}\log\frac{3.0}{a-x}$

$a-x=2.9M$

Thus, the final concentration of $N_2O_5$ is, 2.9 M

3 0

2 years ago

Thre largest source of available freshwater on earth is

Burka [1]

Ice caps so it would be D

Hope it helps :-)

6 0

2 years ago

Read 2 more answers

How much does a gallon of water WEIGH?

elixir [45]

A gallon of water weighs 8.34 pounds

4 0

3 years ago