Unit 2 - Atoms

Front

In a neutral atom, the number of protons is equal to the number of _____

Back

electrons

Front

Atomic particle with a negative charge

Back

electron

Front

An atom of an element with the SAME number of protons and a DIFFERENT number of neutrons

Back

isotope

Front

The atomic MASS of an atom with
15 protons
15 electrons
16 neutrons

Back

31
(add protons + neutrons)

Front

The atomic NUMBER of an atom with
15 protons
15 electrons
16 neutrons

Back

15
(# of protons determines

the atomic number)

Front

The atomic particles located on the outermost energy level that are involved in bonding between atoms

Back

valence electrons

Front

Part d

Back

electron cloud

Front

Part a

Back

nucleus

Front

Part b

Back

neutron

Front

Part c

Back

proton