B-R Diagrams
Counting Atoms
Trends in the Periodic Table
PP/PC/CC/CP
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
Is salt dissolving in water a PC/CC/CP/PP?
PC
100
Number of neutrons in Kr?
48
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
Is zinc reacting in hydrochloric acid a PP/PC/CC/CP?
CC
200
To calculate neutrons, the equation is. . .
atomic mass - atomic number
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
Copper has a reddish tinge to it, PP/PC/CC/CP?
PP
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
Finish the lyric.... sodium for salty times, magnesium, aluminum, silicon, phosphorus, then sulfur chlorine and argon, potassium and ____ ___ ___ __ _____.
calcium so you'll grow strong.
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
What is a charged atom called?
Ion
500
Draw the ion diagram for BORON
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