HW DUE 4 Dec FLASHCARDZIZZ

Front

What is the atomic mass of Neon?

Back

20.18

Front

How many neutrons are there in an Fe atom with mass number 56?

Back

30

Front

How many neutrons are in a Gold atom?

Back

118

Front

Which two particles make up the nucleus of an atom?

Back

Protons and Neutrons

Front

Who proposed the 'Plum Pudding' model of the atom?

Back

Thomson

Front

What is the definition of atomic mass?

Back

The weighted average mass of an element's isotopes, measured in atomic mass units (amu).

Front

What is the mass number of an atom?

Back

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

Front

What is the charge of a neutron?

Back

Neutrons have no charge (neutral).

Front

What is the charge of a proton?

Back

Protons have a positive charge.

Front

What is the role of electrons in an atom?

Back

Electrons are negatively charged particles that orbit the nucleus and are involved in chemical bonding.