Physical Science Midterm December 2024

Front

What is a positively-charged particle in the atom's nucleus?

Back

Proton

Front

Which elements in the periodic table have similar properties?

Back

Two elements in the same group

Front

True or false: Some physical changes involve chemical reactions.

Back

False

Front

Which element has 2 valence electrons?

Back

Calcium (Ca)

Front

What are groups in the periodic table?

Back

Columns

Front

What is the charge of a neutron?

Back

Neutral (no charge)

Front

What is the smallest unit of an element?

Back

Atom

Front

What is the term for the horizontal rows in the periodic table?

Back

Periods

Front

What do you call the negatively charged particles in an atom?

Back

Electrons

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.