Q1 HW 7-2 Quiz Review

What are the 3 subatomic particles of an atom and their charges ?

• neutrons +, protons - , electrons 0

• electrons +, neutrons - , protons 0

• nucleus +, protons 0, electrons -

• protons + , neutrons 0, electrons -

What subatomic particle(s) would be found orbiting the nucleus?

• Neutrons only
• Electrons only
• Protons and Neutrons
• Protons and Electrons

Tags

NGSS.MS-PS1-1

Which subatomic particles contribute the most to the mass of an atom?

• Protons and Neutrons

• Protons only

• Electrons and Protons

• Neutrons only

Which subatomic particles contribute the least to the mass of an atom?

• Neutrons

• Protons

• Electrons

• Nucleus

The atom has ________ parts. They are the _______________________________________________.

• 2, nucleus and electron cloud

• 3, electron, protons, neutrons & electrons

• 2, protons and neutrons

• 3, core and electrons

What is the mass number of an element that has 8 protons, 9 electrons, and 8 neutrons?

• 8

• 17

• 16

• 25

In an electrically neutral atom, the number of electrons is equal to the...

• atomic number
• mass number
• average atomic mass
• most common isotope

What is the atomic # of an element that has 4 protons, 6 electrons, and 5 neutrons?

• 4
• 5
• 6
• 9

Tags

NGSS.MS-PS1-1

How many electrons does Boron have?

• 5

• 11

• 6

• 16

How many neutrons does Fluorine have?

• 9

• 19

• 10

• 28