Periods and Groups
A row on the periodic table.
What is a period?
The charge that electrons have.
What is negative?
Where metals are located on the periodic table.
What is the left side?
The number of valence electrons that group 2 elements have.
What is 2?
The group number that consists of the noble gases.
What is 18?
A column on the periodic table.
What is a group/family?
The subatomic particle with no charge.
What is the neutron?
Where metalloids are located on the periodic table.
What is the staircase?
The number of valence electrons that phosphorus (15) has.
What is 5?
The special name for group 17 elements.
What are halogens?
Periods correspond to this in an atom.
Rings/electron shells/energy levels.
The electrons in the outer shell of an atom.
What is a valence electron?
The classification of an element that is dull, brittle, and doesn't conduct electricity.
What is a nonmetal?
The most reactive metal group on the periodic table
What is group 1 alkali metals?
The special name for group 2 on the periodic table.
Groups correspond to this in an atom.
Valence electrons
How to calculate the number of neutrons in the atom.
Atomic mass - atomic number
The only nonmetal found to the left of the staircase on the periodic table.
What is hydrogen?
The unreactive group on the periodic table.
In a Bohr model of Carbon, how many rings and valence electrons would there be?
2 rings, 4 valence electrons.
Where most of the mass of an atom lies AND the formula for calculating mass.
Nucleus, protons + neutrons
The 3 characteristics of metals
What are conductivity, malleability, and luster?
The more reactive of the following: sulfur (16) or chlorine (17)
Chlorine
The reason that noble gases are unreactive.
Full valence shells.