Unit 1 Exam Review on Atomic Theory and Atomic Structure

Front

What are atoms with the same number of protons but different numbers of neutrons?

Back

Isotopes

Front

Isotopes are atoms of the same element with different #’s of __________ & therefore different __________.

Back

neutrons ; mass number

Front

Where are electrons likely to be found as they travel around the nucleus?

Back

Electron Cloud

Front

How many protons does Argon have according to the periodic table?

Back

18 protons

Front

If a neutral copper atom (atomic number 29) becomes an ion with a charge of 2+, how many electrons does it have?

Back

27 electrons

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What are the three main subatomic particles?

Back

Protons, Neutrons, Electrons.

Front

What charge do protons carry?

Back

Positive charge.

Front

What charge do electrons carry?

Back

Negative charge.