B-R Diagrams
Counting Atoms
Trends in the Periodic Table
Types of Bonds
Misc.
100
What is the charge of electrons? protons? neutrons?
negative, positive, no charge
100
How many atoms are in one molecule of H₂O?
3
100
Elements in the same column are part of the same
group/family
100
If an atom can give away an electron it is called a what?
cation
100
What is a charged atom called?
ion
200
What is the chemical symbol for potassium?
K
200
How many elements are in MgCl₂ ?
2
200
True or false:
Elements in the same period have the same amount of valence electrons
False
Elements in the same group/family have the same amount of valence electrons
200
a charged atom that has MORE electrons than protons (it receives electrons from another ion) is called a ____
anion
200
A bond between two non-metals is a...
Molecular bond
300
How do we calculate the number of protons and electrons?
protons = atomic #
electrons = atomic #
300
H₂SO₄ contains how many atoms total?
7
300
How many valence electrons does oxygen have?
6
300
What type of bond has a donation of electrons?
Ionic
300
What is the family found in the staircase?
Metalloids/Semi-metals
400
How many electrons can the first shell hold?
second shell?
first shell - 2
second shell - 8
400
What is the difference between H2O and H2O2?
H2O2 contains an additional oxygen
400
What group are alkali earth metals found in?
2
400
What type of bond has a sharing of electrons?
molecular
400
What is the name for the elements located in group 17?
Halogens
500
Draw a B-R diagram for Carbon on the board
500
Indicate the amount of atoms of each element in the following compound:
Fe2(SO4)3
Fe - 2
S- 3
O - 12
500
What group are the least reactive elements found in?
18
500
Ionic bonds occur between....
a metal and non-metal
500
What is a diatomic element? AND What acronym is used to memorize diatomic elements?
An element that only exists bonded to itself. (O2)
HOFBrINCl