CED Unit 1 AP Chemistry

When an electron is in a higher energy level, it is ___________ the nucleus and therefore has _______ Coulombic attraction to the nucleus and is ________ to remove (...it has a _________ 1st ionization energy.)

• closer to

  greater

  harder

  higher

• farther from

  less

  easier

  lower

• farther from

  greater

  easier

  higher

• closer to

  less

  harder

  lower

Tags

NGSS.HS-PS1-1

Moving across a row on the periodic table, the Z_eff (nuclear charge) _______, therefore the valence electrons are ________ attracted to the nucleus, therefore the atomic radius __________ and the ionization energy ____________. 

• decreases

  less

  increases

  decreases

• increases

  less

  increases

  increases

• increases

  more

  decreases

  increases

• decreases

  more

  decreases

  decreases

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

When reading a PES graph, the higher the peak, _______________

• the more energy the electrons contain

• the more electrons are in that sublevel

• the further the electrons are from the nucleus

• the higher the first ionization energy

When reading a PES graph, a larger binding energy means

• there are more electrons in that sublevel

• the closer the electrons are to the nucleus

• the lower the ionization energy

• the further away the electrons are from the nucleus

When writing the electron configuration for a cation, which is the order for removing electrons?

• p, then s, then d

• s, then p, then d

• d, then p, then s

• d, then s, then p

Elements in the same __________ have similar chemical and physical properties.

• group

• period

• horizontal row

• vertical column

Mass spectroscopy graphs measure ______________

• boiling points of hydrocarbons

• ionization energies of electrons

• atomic masses of isotopes

• numbers of electrons in each sublevel

Isotopes of an element have the same number of _______, but different numbers of _________.

• neutrons

  protons

• protons

  neutrons

• protons

  electrons

• electrons

  protons

Tags

NGSS.HS-PS1-8

Metals are on the ________ side of the zig-zag line and nonmetals are on the _______ side of this line on the periodic table. 

• left

  right

• right

  left

Cations (+) are _________ than their atoms. Anions (−) are _________ than their atoms.

• smaller

  larger

• larger

  smaller

• smaller

  smaller

• larger

  larger