3 years ago

Which principal energy level of an atom contains an electron with the lowest energy?

2 answers:

7 0

The answer is n=1 because of what he said^

4 0

The answer is a.n=1 because it makes sence

You might be interested in

mixas84 [53]

Chemical bonds are broken to supply us with energy. Without bonds, and our ability to break them, the food we eat would not supply us with energy.

8 0

3 years ago

Gekata [30.6K]

<u>Answer:</u> The mass percent of lead in lead (IV) carbonate is 63.32 %

<u>Explanation:</u>

The given chemical formula of lead (IV) carbonate is $Pb(CO_3)_2$

To calculate the mass percentage of lead in lead (IV) carbonate, we use the equation:

$\text{Mass percent of lead}=\frac{\text{Mass of lead}}{\text{Mass of lead (IV) carbonate}}\times 100$

Mass of lead = (1 × 207.2) = 207.2 g

Mass of lead (IV) carbonate = [(1 × 207.2) + (2 × 12) + (6 × 16)] = 327.2 g

Putting values in above equation, we get:

$\text{Mass percent of lead}=\frac{207.2g}{327.2g}\times 0100=63.32\%$

Hence, the mass percent of lead in lead (IV) carbonate is 63.32 %

4 0

2 years ago

Leona [35]

N(C): N(H)=n(C): n(H)=6: 10
3×10²¹: x=6: 10
x=5×10²¹

4 0

2 years ago

nekit [7.7K]

The moon, man has not been to mars yet

7 0

2 years ago

omeli [17]

A condensation reaction forming a glycosidic bond. so in other words a monosaccharide joining together to form a disaccharide.

5 0

3 years ago