science periodic table

Question 1

Atom

Answer 1

The smallest particle of a chemical element that can exist

Question 2

Element

Answer 2

A substance that cannot be further broken down by a chemical reaction. Found in the periodic table.

Question 3

Periodic Table

Answer 3

A table of the chemical elements arranged in order of atomic number so that elements with similar atomic structure appear in vertical columns.

Question 4

Group

Answer 4

Column in the periodic table (Number of electrons on outer shell)

Question 5

Period

Answer 5

Row in the periodic table (Number of electron shells)

Question 6

Proton

Answer 6

Positively charged particle found in the nucleus of atoms

Question 7

Neutron

Answer 7

Neutrally charged particle found in the nucleus of atoms

Question 8

Electron

Answer 8

Negatively charged particle found in shells (orbits) around the nucleus of atoms

Question 9

Mass

Answer 9

The quantity (amount) of matter in a physical object. It is measured in kilograms (kg)

Question 10

Decomposition

Answer 10

Breaking down of substances