Chemistry Pre Assessment

Front

A vertical column in the periodic table is called a...

Back

group

Front

What is the name of a single type of atom?

Back

element

Front

Which part of an atom is positively charged?

Back

protons

Front

The horizontal row on the periodic table is called a...

Back

period

Front

The speed of the molecules determines the _____?

Back

temperature

Front

What is the smallest unit of an element that retains its properties?

Back

atom

Front

What are the three main subatomic particles?

Back

protons, neutrons, electrons

Front

What is the charge of neutrons?

Back

neutral

Front

What is the charge of electrons?

Back

negative

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.