Show:
How Many?
Definitions
Names
Hodge-Podge
Trends
100
Valence electrons in Barium
2
100
ion
an atom with a positive or negative charge
100
Name group 7A/17
Halogens
100
shielding
electrons closer to the nucleus protect outside electrons from attractive force
100
Electronegativity increases these ways
up and right
200
Ionic charge on Gallium
+3
200
valence electron
What is an electron in the highest (or outside) energy level?
200
name group 2
Alkaline Earth Metals
200
Cations _____ electrons and Anions _____ electrons
Cations LOSE electrons and Anions GAIN electrons
200
atomic radius increases these ways
left and down
300
Charge on the Zinc ion
+2
300
atomic radius
What is half the distance between the nuclei of two atoms of the same element when the atoms are joined?
300
Name some nonmetals
Carbon/Nitrogen/Phosphorus/Sulfur/Krypton ...
300
2-for-1! Define ductile and malleable.
ductile: good conductor of current malleable: can be bent without breaking
300
Which atom is bigger, Boron or Calcium?
Calcium
400
Number of electrons a Magnesium ION has
10 (had 12, lost 2)
400
ionization energy
What is energy needed to remove electrons from an atom?
400
Most of the elements on the table are this.
Metals
400
Is Li or Li+1 bigger?
Lithium without charge is bigger
400
The most electronegative element
What is Fluorine?
500
Valence electrons in configuration 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
8
500
electronegativity
What is the ability of an atom to attract electrons?
500
How we refer to elements in the s and p areas of the table, in groups 1A, 2A, 3A, 4A, 5A, 6A, 7A, and 8A
What are representative elements?
500
Why does atomic radius increase in certain directions? Give both reasons
Shielding and "because there are fewer protons to pull tightly on electrons as you go left"
500
Element with the highest ionization energy
What is Helium