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Lewis-Dot
Electron Configuration
Periodic Properties
Naming Compounds
Definitions
100
What is the total number of valence electrons in sulfur dichloride?
20e-
100
What is the group, period, block and element of [Ar]4s2 3d4?
Group 6, Period 4, Block d, Cr
100
What is atomic radius and what happens as they move across a period?
One half the distance between two nucleiof two bonded idential atoms. They decrease.
100
What is the name of the following compound, SrF2?
Strontium Fluoride
100
What is a chemical compound whose simplest units are molecules?
Molecular compound
200
What is Lewis Dot or structure of C2H2
H-C(Triple)C-H
200
What is the electron configuration of Group 3, Fifth Period?
[Kr]5s2 4d1
200
What is a charged atom or a charged group of bonded atoms?
An Ion
200
What is the name of the following compound, CaBr2?
Calcium Bromide
200
What is a measure of ability of an atom in a chemical compound to attract electrons from another atom in the compound is called?
Electronegativity
300
What is Carbonate ion Lewis Dot or Structure (CO3-2)?
22 e- O-C-O | O
300
What is more likely to happen in each group and give number? (gain or lose electrons?) Group 1, Group 16 and Group 18
Lost, 1 Gain, 2 Neither lost or gain, 0
300
What is Groups 3-12 called?
Transition Metals
300
What is the name of NH4OH?
Ammonium Hydroxide
300
What is a bond forming from the sharing of electron pairs between two atoms called?
Covalent bonding
400
What is the factor that usually determines the central atom?
The least-electronegative atom (with the exception of Hydrogen, which is never the central atom). Carbon present it is usually the central atom.
400
What is the arrangement of the following elements in decreasing electron affinity? (C, O, Li, Na, Rb, and F)
F>O>C>Li>Na>Rb
400
What is the most reactive, nonmetals, seven valence electrons, all poor conductors of heat and electricity?
Halogens
400
What is the name of SO3?
Sulfur Trioxide
400
What is a compound composed of two or more elements?
Binary Compound
500
What is Lewis Dot structure that contains 1 Nitrogen and 3 Iodine atoms? (How many total valence electrons?)
** I-N-I | I What is Lewis Dot structure that contains 1 Nitrogen and 3 Iodine atoms? (How many total valence electrons?)
500
What is the number of electrons in one atom of Phosphorus and how many unpaired electrons does it have?
15, 3
500
What are the liquid elements at ordinary conditions?
Bromine, Mercury, Francium, Cesium, Gallium and Rubidium
500
What is the name of PBr5?
Phosphorus Pentabromide
500
What is a covalent bondin which the bonded atoms have an unequal attraction for the shared electrons?
A polar-Covalent Bond