click below
click below
Normal Size Small Size show me how
Science C.A.
Question | Answer |
---|---|
The number of electrons is equal to the number of | Atomic Number |
The number of protons is equal to the | Atomic Number |
The number of neutrons is equal to | the atomic mass minus the atomic number |
the period number on the periodic table is equal to the number of | shells |
the group number on the periodic table is equal to the | the number of valence electrons |
the number of valence electrons for an atom is equal to the number of | electrons on the outer shell |
metals are on the | left side of the periodic table |
Non-metals are on | the right side of the periodic table |
Metalliods are | between metals and non-metals. |
the subatomic particles responsible for supplying most of of the mass of any atom. | proton and neutrons |
how many protons are in the element found in group 18, row 2? | 10 |
how many neutrons are in the element found in period 3, group 13? | 14 |
how many electrons are in the element found in period 3, group 8? | |
how many valence electrons are in the element found in period 2, group 1? | |
how many valence electrons are in the element found in period 6, group 18? | |
how many valence electrons are in the element found in period 2, group 13? | |
Atomic number increases as you move from | left to right and top to bottom |
valence electrons increase as you move from | left to right |
electron orbital/shells increase as you move from the | top to the bottom |
which element is in the same group as oxygen, but the same period as argon and has an atomic mass greater than phosphorus and less than chlorine? | sulfur |