Atomic mass and atomic number quiz

How many protons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?

• 20
• 10
• 2
• 18

How many neutrons are in an atom with an atomic number of 20, an atomic mass of 45, and a charge of +2?

• 20
• 25
• 2
• 18

What particle provided the positive charge for an atom?

• proton 
• neutron
• electron
• nucleus

Which particle does not contribute mass to the atom?

• Proton
• Neutron
• Electron
• Nucleus

Which particle contributes the negative charge to the atom?

• proton
• electron
• neutron
• nucleus

How many protons are in this element?

• 79
• 196
• 117
• Cannot be determined

What is the atomic mass (rounded to the nearest whole number) of this element

• 196
• 196.95
• 197
• 79

How many protons will an atom have it has an atomic number of 26?

• 29

• 30

• 26

• 3

How many protons will an atom have if it has 36 electrons and a charge of -2?

• 36
• 38
• 34
• 2

How many protons will an atom have it it has 23 electrons ?

• 23

• 26

• 20

• 3