Chemistry & Water Review

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the atomic mass of an element?

Back

The atomic mass is the total number of protons and neutrons in the nucleus of an atom.

Front

How many protons does an element with atomic number 15 have?

Back

15 protons.

Front

What is a molecule?

Back

A molecule is a substance made up of two or more atoms bonded together by covalent bonds.

Front

What is the outer shell electron requirement for stability in most elements?

Back

Most elements need 8 electrons in their outer shell for stability.

Front

What type of bond involves the transfer of electrons?

Back

Ionic Bonds involve the transfer of electrons.

Front

Which two particles are found in the nucleus of an atom?

Back

Protons and Neutrons.

Front

What is a covalent bond?

Back

A covalent bond is a type of chemical bond where atoms share electrons.

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solution.