Which is the missing value that will balance the equation?
0-1
0 0
0 +1
O +2

+1

Explanation:

Let x be the missing value in the equation as shown below:

²²₁₁Na —> ²²₁₀Ne + ⁰ₓβ

The missing value (x) can be obtained as follow:

11 = 10 + x

Collect like terms

11 – 10 = x

1 = x

x = 1

Therefore, the missing value (x) is +1 and the balanced equation is:

²²₁₁Na —> ²²₁₀Ne + ⁰₁β

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms