Which statements best describes a covalent bond? * Metal bonds to non-metal; electrons are given from one atom to another, forming oppositely charged ions that are attracted to each other.
Metal bonds to non-metal; a bond where electrons are shared between more than one atom.
Non-metal bonds to nonmetal; electrons are given from one atom to another, forming oppositely charged ions that are attracted to each other.
Non-metal bonds to non-metal; a bond where electrons are shared between more than one atom.

- 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

they are made of gases.

they have a spherical shape.

they make energy through fusion.

with this one i know the answer in craters one reason i looked it up and i learned about it there is my evidence