2.1 Ionic vs covalent bonding

Front

Why do elements covalently bond?

Back

So they can share electrons, and fill both of their valence shells at the same time. They can then become stable.

Front

Covalent bonds form when...

Back

Atoms share electrons.

Front

Oxygen has 6 valence electrons, Hydrogen has 1. How many hydrogens need to bond to 1 oxygen atom to form a stable valence shell of 8?

Back

2

Front

How many covalent bonds can nitrogen form? (atomic number 7)

Back

3

Front

When an atom receives an electron it becomes a...

Back

negative anion.

Front

What is a covalent bond?

Back

A chemical bond formed when two atoms share one or more pairs of electrons.

Front

What is the octet rule?

Back

Atoms tend to bond in such a way that they have eight electrons in their valence shell, achieving stability.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What type of elements typically form covalent bonds?

Back

Nonmetals.

Front

What is a molecule?

Back

A group of atoms bonded together by covalent bonds.