Atomic Structure and Periodic Table Worksheet

By providing explanations for the colors and symbols used.

By making the table look more colorful.

By confusing you with extra information.

By hiding the meaning of the colors and symbols.

They were absorbed by the gold foil.

They were deflected strongly.

They passed through without any deflection.

They turned into electrons.

Because they are too large to fit in orbits

Because their movement is related to their energy level and they can be anywhere in a cloudlike region

Because they are attracted to other atoms

Because they are part of the nucleus

Only electrons

A tiny, massive nucleus containing protons and neutrons

A cloud of electrons

Only protons

An electron is about 1/2 the mass of a proton or neutron

An electron is about 1/2,000 the mass of a proton or neutron

An electron is about the same mass as a proton or neutron

An electron is twice the mass of a proton or neutron

8

16

4

2

7

10

18

32

Group 18

Group 1

Group 2

Group 17

The number of protons in the nucleus of an atom

The number of neutrons in the nucleus of an atom

The number of electrons in the outer shell

The total number of isotopes

By using one or two letters, often as an abbreviation of the element’s English or Latin name

By using the full name of the element

By using three numbers

By using the atomic mass and atomic number