Practice quiz Atoms/ions

The nucleus of an atom is made up of ___________________.

• Protons and Neutrino

• Neutrons and Electrons

• Protons and Neutrons

• Protons and Electrons

How many electrons in an aluminum ion (Al⁺³)?

• 13

• 27

• 16

• 10

What charge does an atom have when it GAINS electrons?

• Positive

• Negative

• Neutral

The image shows the periodic grid of potassium. How many electrons are found in the potassium atom?

• 19

• 20

• 39

• 40

Sodium has an atomic number of 11, how many protons does this atom have?

• 22
• 11
• 12
• 2

An atom...

• is the smallest unit of matter

• exists in a neutral state

• is made up of protons, neutrons, electrons

• all of the above

What is another name for a positive ion?

• atom

• cation

• anion

• proton

What subatomic particle changes in an ion?

• The number of electrons

• The number of protons

• The number of neutrons

All cations...

• ... are metals

• ... have a positive charge

• ... lose electrons

• ...all of the above

All anions...

• are non-metals

• gain electrons

• have a negative charge

• all of the above