Atomic Structure

How can two atoms of the same element have different masses? What are they called?

• They have different numbers of neutrons, called isotopes

• They have different numbers of neutrons, called ions

• They have different numbers of electrons, called isotopes

• They have different numbers of protons, called ions

What is the term for atoms of the same element with different numbers of neutrons?

• Isotopes

• Ions

• Atoms

• Elements

The atomic number Z tells you how many ______ are in an atom.

• Electrons

• Protons

• Neutrons

The mass number tells you how many ______ there are in an atom.

• Protons + Neutrons

• Electrons + Neutrons

• Protons

• Neutrons

Name the element with an Z (atomic number) of 12?

• Magnesium

• Manganese

• Mercury

• Molybdenum

How many electrons are in Sulfur atom with a neutral charge?

• 32

• 16

• 48

• 8

Tags

NGSS.MS-PS1-1

Which atom will have a +1 charge?

• 3 protons

  4 neutrons

  3 electrons

• 3 protons

  4 neutrons

  4 electrons

• 3 protons

  4 neutrons

  2 electrons

• 3 protons

  3 neutrons

  3 electrons

How many electrons are present in this atom?

• 36

• 17

• 19

• 18

Tags

NGSS.MS-PS1-1

How many neutrons are present in this atom?

• 36

• 17

• 19

• 18

Tags

NGSS.MS-PS1-1

Which subatomic particle determines the element?

• Neutron
• Proton
• Electron
• Quark