8th Grade Chemistry Basics (8.8AB) Review

Front

What group of elements has 7 outer electrons?

Back

Group 17 (Halogens)

Front

What charge does a neutron have?

Back

No charge

Front

If a Carbon atom has 6 protons, how many electrons will it have?

Back

6 electrons

Front

What is the mass number of an element with 18 protons, 18 electrons, and 19 neutrons?

Back

37

Front

What is the dense, positively charged mass located in the core of the atom?

Back

Nucleus

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the role of electrons in an atom?

Back

Electrons are negatively charged particles that orbit the nucleus and are involved in chemical bonding.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number and grouped by similar properties.

Front

What are isotopes?

Back

Atoms of the same element that have the same number of protons but different numbers of neutrons.