Unit 7: Atomic Structure & Periodic Table

Which correctly pairs the outside particles with their charge?

• Electrons: positive

• Protons: positive

• Neutrons: netural

• Electrons: negative

What are the particles that are found in the nucleus of an atom?

• Protons & electrons

• Neutrons & electrons

• Protons & neutrons

• Protons only

An iron atom has an atomic mass of 56. Its atomic number is 26. How many neutrons does the iron atom have?

• 30

• 56

• 26

• 82

What is the region around the nucleus of an atom where electrons might be found?

• Orbital zone

• Electron cloud

• Electron zone

• Orbital cloud

Tags

NGSS.MS-PS1-1

What charge does a neutron have?

• Positive

• Negative

• Switches between positive and negative

• No charge

Each atom has 1 proton, but the number of neutrons is different. What is this type of atom known as?

• Isomer

• Isotope

• Anion

• Ion

Tags

NGSS.MS-PS1-1

Identify the following atom

• Hydrogen

• Oxygen

• Helium

• Carbon

Tags

NGSS.MS-PS1-1

Oxygen’s atomic number is 8.

This means that an oxygen atom has

• Eight protons in its nucleus

• A total of eight protons and neutrons

• Eight neutrons in its nucleus

• A total of eight neutrons and electrons

Tags

NGSS.MS-PS1-1

What is this sodium atom known as?

• Isomer

• Isotope

• Anion

• Cation

What is a substance that is made

of only one type of atom?

• Element

• Compound

• Mixture

• Solution