Chemical Formulas
Reactivity
Metals, Nonmetals, Metalloids
Arrangement of the period table
Charges
100
Combine Sodium and Chlorine
NaCl
100
A scientist is studying the reactivity of elements. What should he count to determine the reactivity of an element?
Valence Electrons
100
The following are all characteristics of ___________
Shiny, malleable, ductile, high boiling point, good conductor, Hard
Metals
100
What is the Family name of Group 1?
Alkali Metals
Most reactive family
100
The charge of an atom is determined by the varying number of what?
Electrons
200
Combine Barium and Sulfur
BaS
200
If an atom has an outer shell that is full of valence electrons (8) would it be considered highly reactive or non-reactive?
Non-reactive
Full shell is non-reactive and stable
200
The following are all characteristics of __________
Dull, Brittle, Not ductile, Poor conductors
Nonmetals
200
The side to side rows are called _______ and tell you how many ________ ________ an element has
Periods
Energy levels (rings)
could also be called shells
200
What are atoms that are positively or negatively charged called?
Ions
300
Combine Boron and Oxygen
B2O3
300
Which family on the periodic table is the most reactive?
Alkali Metals (Group 1)
Because they are all under 1A meaning they all have 1 valence electron and are highly reactive.
300
At which location would you find an element that is ductile, a good conductor and has a high boiling point?
A
It is a metal and metals are on the left side of the zig zag
300
If 2 elements are in Period 3 what do they have in common?
They have the same number of energy levels.
They both have 3 energy levels
300
What is an anion?
A negatively charged ion
400
Combine Silver and Nitrogen
Ag3N
400
Where are valence electrons located?
Outer most energy level
400
At which location would you find an element that is Dull, brittle and a poor conductor?
B
It is a nonmetal and nonmeatls are on the right of the zig zag
400
What is the Family name of Group 2?
Alkaline Earth Metals
400
What is a positively charged ion called?
Cation
500
Combine Manganese (III) and Phosphorus
MnP
500
Which element is more reactive, Potassium (K) or Krypton (Kr)?
Potassium (K) is more reactive
When you find potassium go to the top of the column and find the number with the letter "A".
Potassium (K) is under 1A meaning it has 1 valence which makes it highly reactive
Krypton (Kr) is under 8A which means it has 8 valence electrons. 8 is a full shell which makes it non reactive
500
If an element has characteristics of both a metal AND a nonmetal it is classified as a __________
Metalloid
500
What is the Family name of Group 17?
Halogens
500
What is the charge of group 7 elements?
-1
600
Combine Tin(IV) and Sulfur
SnS2
600
Which of these elements would be considered the least reactive on period 2?
Ne
600
Name the only nonmetal that has 4 valence electrons
Carbon (C)
600
If two elements are in the same group what do they have in common?
They have the same number of _________
Same number of valence electrons
600
What is the charge on group 3 ions?
+3
700
Combine W(II) and Bromine
WBr2
700
Why is Argon (Ar) less likely to react than Sodium (Na)?
Because Argon (Ar) has a full outer shell
700
Name the only metalloid that has 3 valence electrons
Boron
700
What is the Family name of Group 18?
Noble Gases
700
What is the charge on a group 5 ion?
-3