atomic structure, ions, isotopes

Front

Atoms of the same element which have a different number of neutrons are called _________________

Back

isotopes

Front

The positive particles of an atom are

Back

protons

Front

Determine the average atomic mass of helium, which has two isotopes having atomic masses 4.0026 amu and 3.0160 amu. The relative abundance of the two isotopes is 99.9999 percent and 0.0001 percent, respectively.

Back

4.0026 amu

Front

How many neutrons are in the given atom?

Back

143

Front

An atom with atomic number 6 would have how many protons?

Back

6

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of an electron?

Back

Negative

Front

What is the charge of a neutron?

Back

Neutral

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.