Atoms and the Periodic Table Practice

Front

Carbon atoms and oxygen atoms can combine to form the gas called carbon dioxide. What is carbon dioxide?

Back

is a molecule

Front

True or false: The number of subatomic particles affect the properties of the atom.

Back

True

Front

True or False: Protons and electrons have about the same mass.

Back

False

Front

What subatomic particles are found in the nucleus of an atom?

Back

protons and neutrons

Front

True or False: Neutrons have a negative charge.

Back

False

Front

In an atom, which is true about electrons? Options: They are moving inside the nucleus, They are moving in the space around the nucleus, They are standing still in the space around the nucleus, All of the above

Back

They are moving in the space around the nucleus

Front

The atomic number of an element is equal to: The number of protons, The number of neutrons, The number of electrons, The atomic mass

Back

The number of protons

Front

The atomic mass of carbon is 6.

Back

False

Front

The element symbol of Sodium is “So".

Back

False

Front

Are Lithium (Li) and Sodium (Na) in the same period?

Back

False