Parts of the Atom

Multiple Choice

Check your knowledge! which of the following would be the densest part of the atom?

• Nucleus

• Orbitals

• Protons

• Electrons

Categorize

Options (4)

H

Ga

Cl

Ca

Match the atomic number to the element

20

17

31

1

Categorize

Options (4)

6

28

88

18

Match the element to the correct number of electrons IF the atom is neutral (this detail will be come important later)

Oxygen

Nickel

Radium

Argon

Labelling

Find the parts of nitrogen

Drag labels to their correct position on the image

Atomic Symbol

Average Atomic Mass

Number of protons

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Categorize

Options (8)

Fe 2+

Ba 2+

Na 1+

Cl 1-

P 3-

C 4-

Ag

Ne

Are they cations, anions or neutral?

Cation

Anion

Neutral

Categorize

Options (6)

Au

He

Cl -

O 2-

Li 1+

Ni 3+

Put the ions with the correct balance between their protons and electrons

More protons than electrons

More electrons than protons

Protons = electrons

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Multiple Choice

If an atom is an isotope, it has a different number of ________ subatomic particle

• Proton

• Nucleus

• Electron

• Neutron

Multiple Choice

Even if the atom is an isotope, the subatomic particle that ALWAYS will be the same number is the

• Proton

• Nucleus

• Electron

• Neutron

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