Chemistry REVIEW

What is the atomic number of this atom?

• 1

• 3

• 4

• 7

Most of the mass in an atom is made up of _____________________?

• protons and electrons
• protons and neutrons
• neutrons and electrons
• electrons and quarks

What is the atomic number and atomic mass?

• Atomic mass: 6

  Atomic number: 12.011

• Atomic mass: 12.011

  Atomic number: 6

How many electrons does this atom have?

• 2

• 4

• 6

• 10

Which of the following determines the identity of an element?

• number of protons

• atomic mass

• number of neutrons

• number of shells

Which of the following shows the correct charges for each subatoomic particle?

• electrons (+),

  neutrons (0),

  protons (+)

• electrons (-),

  protons (0),

  neutrons (+)

• electrons (0),

  neutrons (-),

  protons( +)

• electrons(-),

  protons (+),

  neutrons (0)

Which of the following shows the correct location for each subatomic particle?

• electron cloud: electrons & neutrons

  nucleus: protons

• electron cloud: neutrons & protons

  nucleus: electrons

• electron cloud: electrons

  nucleus: protons & neutrons

• electron cloud: protons

  nucleus: neutrons & electrons

How many protons, neutrons, and electrons does Cl have? Hint: work out PEN APE MAN on a sheet of paper. Be careful when rounding.

• P: 17

  E: 17

  N: 18

• P: 17

  E: 35

  N: 19

• P: 17

  E: 17

  N: 19

• P: 17

  E: 18

  N: 17

How many protons, neutrons and electrons does As have? Hint: work out PEN APE MAN on a sheet of paper. Be careful when rounding

• P: 33

  E: 33

  N: 41

• P: 33

  E: 74

  N: 33

• P: 33

  E: 33

  N: 42

• P: 33

  E: 75

  N: 42

What is the element name of the atom pictured? Hint: Need the periodic table

• Li

• Cl

• Be

• Na