Unit 5 Test Review Quizizz

What is an atom?

• The smallest unit of a compound

• The smallest unit of matter that retains the properties of an element

• A combination of molecules

• A type of chemical bond

Tags

NGSS.MS-PS1-1

Which subatomic particle has a positive charge?

• Proton

• Neutron

• Electron

• Atom

Where are electrons located in an atom?

• In the nucleus

• In the electron cloud

• In the neutron shell

• On the atomic mass

What is the charge of a neutron?

• Positive

• Negative

• Neutral

• None of the above

What is the octet rule?

• 8 electrons in the outer shell

• 18 electrons in the outer shell

• 10 electrons in the outer shell

• 2 electrons in the outer shell

What does the atomic number of an element represent?

• The number of protons

• The number of neutrons

• The number of electrons

• The atomic mass

What is the chemical symbol for oxygen?

• Ox

• O

• Oy

• Om

What is the mass number of an atom with 6 protons and 7 neutrons?

• 6

• 7

• 13

• 12

Which element has the chemical symbol 'Na'?

• Neon

• Sodium

• Nitrogen

• Nickel

Which subatomic particle determines the element's identity?

• Proton

• Neutron

• Electron

• Atomic mass