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2 years ago

How do you figure out how many valence electrons an element has?

2 answers:

8 0

The valence electron of an atom has the highest energy level and is found on the outermost energy level. It is also the group number

Alik [6]2 years ago

4 0

It's how many are in the element's outer layer. The layers go: 2, 8, then 8.

Ex-6 electrons. 1 layer is 2, the next layer has 4 left. If that layer holds 8, you can do 8-4 and it has 4 valence electrons.

Ex-10 electrons. 1 layer is 2, the next layer has 0 left. It has 8 valence electrons because the outermost layer is full with 8.

ex-11 electrons. 1 layer is 2, the next layer is full as well. 2+8=10; it has 1 left. So that element has only one valence electron.

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The decomposition of nitrogen dioxide is described by the following chemical equation: Suppose a two-step mechanism is proposed

Mandarinka [93]

Answer:

first step

NO2(g) ------------------------------------> NO(g) + O(g)

second step

NO2(g) + O(g) -----------------------------> NO(g) + O2(g)

Explanation:

first step

NO2(g) ------------------------------------> NO(g) + O(g)

second step

NO2(g) + O(g) -----------------------------> NO(g) + O2(g)

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2 years ago

Which process in the light-dependent reactions results in the release of hydrogen ions, electrons, and oxygen?

vodomira [7]

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3 0

2 years ago

Read 2 more answers

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notsponge [240]

Answer:

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2 years ago

Electrons are attracted to ________________. protons other electrons neutrons all the particles

rjkz [21]

Protons .because electron has negative charge and proton has positive charge.

6 0

2 years ago

EIGHTY POINTS- WILL GET BRAINLIEST NEED ANSWER ASAP

il63 [147K]

ans A. 13 to 3

solution:

Total puppies for sale=6

Total puppies left = 2

hence total puppies sold= 6 - 2 = 4

cost of a puppy= $ 104

so cost of 2 puppies = 104 x 4

=416$

Now for kittens:

Total kittens for sale = 12

Total kittens left = 8

hence total kittens sold=12 - 8 =4

cost of a kitten = $24

so cost of 4 kittens= 24x 4=96$

Now ratio of sales of puppies to kittens = 208$/96$

= 13/3 or 13:3 or 13 to 3

I hope this explanation will help you to understand this problem

5 0

2 years ago