Physical Science Midterm Study

Front

What is group 18 on the periodic table called?

Back

Noble Gases

Front

What is the most abundant element in the universe?

Back

Hydrogen

Front

What element has 5 valence electrons and uses 6 orbital shells?

Back

Bismuth

Front

Can the mass number of an element be used to determine the number of electrons in an atom?

Back

False

Front

Do atoms of different elements have different numbers of protons?

Back

True

Front

What are the characteristics of Noble Gases?

Back

Noble Gases are colorless, odorless, and inert under standard conditions.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with other atoms.

Front

What is the atomic number of an element?

Back

The atomic number is the number of protons in the nucleus of an atom.

Front

What is the difference between mass number and atomic mass?

Back

Mass number is the total number of protons and neutrons, while atomic mass is the weighted average mass of an element's isotopes.

Front

What are isotopes?

Back

Isotopes are atoms of the same element with different numbers of neutrons.