Test on Isotopes and Ions

Front

How can you find the number of neutrons in an isotope?

Back

Subtract the atomic number from the mass number.

Front

What is the charge of an atom with 7 protons and 7 electrons?

Back

0

Front

What is the atomic number of an isotope?

Back

The number of protons.

Front

How do isotopes of the same element differ?

Back

Different number of neutrons.

Front

How many protons does this isotope of titanium have?

Back

22.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What determines the chemical properties of an element?

Back

The number of protons (atomic number).

Front

What is an ion?

Back

An atom or molecule that has a net electric charge due to the loss or gain of one or more electrons.

Front

What is the charge of a sodium ion (Na+) with 11 protons and 10 electrons?

Back

+1