Units 4, 5, and 6 Semester Review

Front

What is the atomic number of an element?

Back

The number of protons in an atom.

Front

Which of the following best describes a covalent bond?

Back

Sharing of electron pairs between atoms.

Front

What geometry will this molecular structure have?: H₂S

Back

Bent.

Front

Write the formula for Nitrous Acid

Back

HNO₂.

Front

What does the period number indicate about an element?

Back

How many electron shells it uses.

Front

What is a proton?

Back

A positively charged particle found in the nucleus of an atom.

Front

What is a neutron?

Back

A neutral particle found in the nucleus of an atom.

Front

What is an electron?

Back

A negatively charged particle that orbits the nucleus of an atom.

Front

Define ionic bond.

Back

A bond formed by the transfer of electrons from one atom to another.

Front

What is the significance of valence electrons?

Back

They determine an atom's chemical properties and bonding behavior.