Identifying Polyatomic Ions
The Periodic Table
Trends in the Periodic Table
Atoms and Electron Configuration
Significant Figures
100
NH4+
What is ammonium
100
The periodic table is arranged according to ______
What is atomic number
100
Half the distance from the centers of two like atoms that are bonded together
What is a bond radius
100
The law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
What is the law of conservation of mass
100
Zeros at the end of a number are __________
What is not significant
200
NO3-
What is nitrate
200
Group 15 has a charge of ___
What is 3-
200
Atomic radius ______ as you move down a group
What is increases
200
In the gold foil experiment, the ______ reflected a few select positively charged alpha particles
What is the nucleus
200
The number of significant figures in 2000.
What is 4 sigfigs
300
CO3(2-)
What is carbonate
300
Elements in the same period occupy the same number of ________ ________
What are energy levels
300
A measure of the ability of an atom in a chemical compound to attract electrons
What is electronegativity
300
A state in which an atom has more energy than it does at its ground state
What is the excited state
300
3.256 + 4.6 + 8.99
What is 16.8
400
MnO4-
What is permanganate
400
Particle accelerators make _________ elements
What is synthetic
400
Electronegativity ______ as you move across a period
What is increases
400
The number of electrons that can occupy an s orbital, a p orbital, a d orbital, and an f orbital
What is 2, 6, 10, and 14
400
3.89 x 4.652 x 9.8
What is 177.3
500
CH3COO-
What is acetate
500
An element whose atomic number is greater than 106
What is a superheavy element
500
Electron affinity ________ as you move down a group and _______ as you move across a period
What is decreases, increases
500
The electron configuration for potassium
What is 1s^2 2s^2 2p^6 3s^2 3p^6 4s^1 or [Ar]4s^1
500
5.2 / 6.87 + 4.31 - 2.0
What is 3.1
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