Q.1
What electron configuration matches an oxygen atom?
  • 1s22s22p63s2, 3p64s23d104p5
  • 1s22s22p4
  • 1s22s22p6
  • 1s22s22p63s23p64s23d1
Q.2
What groups are the most reactive non metals?
  • 1 and 2
  • 16 and 17
  • 2 and 17
  • 1 and 16
Q.3
All atoms are most stable with (or would "prefer") how many electrons in their valence shell?
  • 1
  • 2
  • 8
  • 18
Q.4
How many valence electrons are found in atoms of group 1?
  • 7
  • 6
  • 4
  • 1
Q.5
How do electrons of an element determine that element's reactivity?
  • If the valence shell has missing electrons it is very reactive to attract or lose more electrons.
  • If the valence shell has a full ring of electrons it is very reactive because it needs more.
  • If the valence shell has a full shell of electrons it is very reactive because it is already full.
  • If the valence shell has missing electrons it is not reactive because it is missing electrons.
Q.6
The elements in this group all have 5 valance electrons.
  • Group 5
  • Group 15
  • Group 3
  • Group 18
Q.7
What atom matches this electron configuration?1s22s22p63s23p64s23d10
  • Zinc
  • Copper
  • Nickel
  • Germanium
Q.8
Valence electrons are located...
  • inside the nucleus
  • in outer space
  • on the outermost orbit of an atom
Q.9
Valence electrons are:
  • Electrons farthest away from the nucleus
  • Electrons closest to the nucleus
  • Electrons that just come and go - they don't stay with the atom
  • Electrons in the second shell
Q.10
When trying to identify an unknown element, a scientist determines what other elements reacts with chemically. Which property of the unknown element determines the other element it reacts with?
  • The total number of neutrons in the unknown element
  • The total number of particles in the nucleus of the unknown element
  • The number of protons in the nucleus of the unknown element
  • The number of valence electrons in the unknown element
Q.11
When electrons are found in higher energy levels, further from the nucleus and are unstable we say that these electrons are in...
  • the ground state
  • the excited state
  • the valence state
  • the neutral state
Q.12
TRUE or FALSE: LEDS is use to emphasize the electron configuration of an element
  • true
  • false
Q.13
The octet rule tells us that atoms are "happy" or stable when...
  • they have 8 neutrons in the nucleus
  • they have 18 neutrons in the nucleus
  • they have 8 electrons in their outer most orbital
  • they have 18 electrons in their outer most orbital
Q.14
When electrons are found in lower energy levels and are in a stable orientation we say that these electrons are in...
  • the ground state
  • the excited state
  • the valence state
  • the neutral state
Q.15
The period that an element is in, tells you what?
  • Number of protons
  • Number of electrons
  • Number of valence electrons
  • Number of shells
Q.16
Valence Electrons are organized into .......
  • Periods
  • Groups
Q.17
Elements are organized by REACTIVITY into.....
  • Periods
  • Groups
Q.18
Families on the Periodic table are organized into .....
  • Periods
  • Groups
Q.19
Rows on the period table are called _____ while columns are called _____.
  • groups, families
  • groups, periods
  • periods, groups
  • families, groups
Q.20
Energy Levels best describe .....
  • Periods
  • Groups
0 h : 0 m : 1 s