Physical Science Final Review

Front

What is the atomic number of an element with 7 protons?

Back

The atomic number is 7.

Front

What happens when two objects pull with equal force?

Back

They will not move at all.

Front

How many valence electrons does a bromine atom have?

Back

Bromine has 7 valence electrons.

Front

What is the name of group number 1 in the periodic table?

Back

Group number 1 is called alkali metals.

Front

What is the small group of elements that includes Carbon (C), Nitrogen (N), and Oxygen (O)?

Back

These elements are called nonmetals.

Front

Define protons.

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What is the definition of valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What are alkali metals?

Back

Alkali metals are the elements in group 1 of the periodic table, known for being highly reactive.

Front

What is the significance of the atomic number?

Back

The atomic number indicates the number of protons in an atom and determines the element's identity.

Front

What are nonmetals?

Back

Nonmetals are elements that typically lack metallic properties and are found on the right side of the periodic table.