Can someone tell my why my answer is incorrect and what the correct answer is? i don’t understand how this is wrong

you were correct from my point of view but you could add a few zero's

Explanation:

i don't see how the was wrong

33000 Grams/Milliliters (g/mL)=33,000,000 Milligrams/Milliliter (mg/mL)

1 g/mL = 1,000 mg/mL

1 mg/mL = 0.001000 g/mL

- 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