Periodic trends & Electrons

What is the charge of the electron?

• neutral

• negative

• positive

Where is the electron located in an atom?

• next to the proton in the nucleus

• next to the neutron in the nucleus

• in the energy levels in the cloud surrounding the nucleus

The mass of an electron is

• 1

• 100

• 1/1840

How many electrons would Cl^-1 charge have?

• 16

• 17

• 18

• 35

Tags

NGSS.HS-PS1-1

How many electrons would Al⁺³ charge have?

• 10

• 13

• 16

• 27

Which has the larger atomic radius? Cadmium (Cd) or Antimony (Sb)

• Cadmium

• Antimony

• they are the same size

Atomic radius or size ___________ as you move from the top to the bottom of the periodic table.

• increases

• decreases

• stays the same

It is more difficult to remove the _____ electron from an atom.

• 1st

• 2nd

• 3rd

Ionization energy is the energy required to remove an electron from an atom.

• True

• False

Which has the largest ionization energy? Sodium (Na), Aluminum (Al), Phosphorus (P), or Argon (Ar)

• Sodium (Na)

• Aluminum (Al)

• Phosphorus (P)

• Argon (Ar)

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2