Unit 2 Lesson 6/7 Vocab Review

Front

Subatomic particle with no charge in an atom's nucleus

Back

neutron

Front

Subatomic particle with a positive charge in the nucleus

Back

proton

Front

Atom's central region made of protons and neutrons

Back

nucleus

Front

Region around an atom's nucleus where electrons are likely found

Back

electron cloud

Front

Number of protons in an element; all atoms have the same one.

Back

atomic number

Front

Sum of protons & neutrons in an atom's nucleus

Back

mass number

Front

Mendeleev's arrangement of elements

Back

periodic table

Front

Weighted average of masses of naturally occurring isotopes.

Back

average atomic mass

Front

Abbreviation for an element's name?

Back

chemical symbol

Front

Elements that are shiny and conduct heat and electricity well.

Back

metal