Sodium will electrons to go from neutral to Na+1. Sodium, Na, has (number) total electrons, while the sodium ion, Na+1, has (number) total electrons.

1. Lose

2. 11

3. 10

Explanation:

When an ion is formed it either loses or gains an electron in this case since the ion is positive it means it has lose an electron, since electrons provide a negative charge. So since it goes from Na to Na+1 it has lost an electron.

The number of electrons is based off of the number of protons/ the atomic number of the element. Sodiums atomic number is 1 1 and since it lost and electron it would go down to 10.

- 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