Unit 2 Part 1 Review

In a stable atom the amount of electrons is electron is equal to

• neutrons
• protons
• atomic mass
• neutrons + protons

Tags

NGSS.MS-PS1-1

What is the difference between the number of electrons in an atom of Calcium, Ca, and the number of electrons in an atom of Aluminum, Al?

• 20
• 7
• 13
• 27

Tags

NGSS.MS-PS1-1

Where is the neutron located?

• In the loose nucleus with the electron
• In the dense nucleus with the protons
• In the electron cloud
• The nucleus floats on orbitals

Tags

NGSS.MS-PS1-1

How many neutrons does oxygen have?

• 16
• 15.99
• 8
• Doesn't contain any neutrons

Tags

NGSS.MS-PS1-1

How many neutrons does the an element with an atomic number of 3 and a mass of 6.9 contain?

• 6.9
• 4
• 3
• 7

Tags

NGSS.MS-PS1-1

An atom with 19 protons, and 19 electrons and a mass of 39 has how many neutrons?

• 19
• 39
• 20
• 58

Tags

NGSS.MS-PS1-1

What is the difference of neutrons between Mg(Magnesium) and B(Boron)?

• 12
• 6
• 24
• 11

Tags

NGSS.HS-PS1-8

How many neutrons does an element have with the atomic number of 36?

• 36
• 84
• 48
• 18

Tags

NGSS.MS-PS1-1

An atom has 5 protons, 6 neutrons, and 5 electrons. What is the charge of the atom's nucleus?

• -5
• +6
• +5
• -6

Tags

NGSS.MS-PS1-1

Sodium has an atomic number of 11, how many protons does this atom have?

• 22
• 11
• 12
• 2

Tags

NGSS.MS-PS1-1