Isotopes and Ions Practice

Front

An atom with 2 protons, 3 neutrons, and 4 electrons has a charge of ____.

Back

-2

Front

76 protons and 114 neutrons corresponds to which isotope?

Back

Osmium-190

Front

In a correctly written symbol, what is located in the 'A' position?

Back

mass number

Front

Which subatomic particle has a +1 charge?

Back

proton

Front

What is the correct symbol for a Bromine ion that gains 1 electron?

Back

Br⁻¹

Front

Define an isotope.

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the charge of a neutral atom?

Back

0

Front

How do you determine the mass number of an atom?

Back

Add the number of protons and neutrons.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus.

Front

What happens to the charge of an atom when it gains electrons?

Back

It becomes negatively charged.