Free Printable Isotopes and Elements Practice Problems by Tyler Dewitt

Worksheets

Name

Class

Date

What is the chemical symbol for sodium?

What is the isotope name for an atom with a mass number of 22?

Nitrogen 22

Oxygen 22

Sodium 22

Carbon 22

How many protons does a sodium atom have?

What is the net charge of a ruthenium atom with 44 protons and 56 neutrons?

What is the chemical symbol for iodine-131 with a negative charge?

I-131

I-132

How many neutrons does an iodine-131 atom have?

What is the isotope name for an atom with 12 protons and 13 neutrons?

Potassium 25

Magnesium 25

Aluminum 25

Sodium 25

What is the net charge of a magnesium atom with 12 protons and 10 electrons?

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