Atoms & Elements Review

Front

What is the atomic number of potassium (K) on the periodic table?

Back

19

Front

How do you calculate the mass number of an atom?

Back

Mass number = Number of protons + Number of neutrons.

Front

What particles are found in the nucleus of an atom?

Back

Protons and neutrons.

Front

True or False: Atoms are the building blocks of matter.

Back

True.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

What is the charge of protons?

Back

Positive.

Front

What is the charge of electrons?

Back

Negative.

Front

What is the mass number of an atom with 10 protons and 15 neutrons?

Back

25.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What does the periodic table organize?

Back

Elements based on their atomic number and properties.