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Atomic Structure and Atomic Theory
Periodic Table and Trends
Chemical Bonding, Structures, and names
Stoichiometry
Chemical Reactions
100
45
How many Neutrons are in 859 Br 35 ?
100
the ionic radius of a cation is smaller than the atoms radius of the metal atoms
How does ionic radius of a typical metal compare with its atomic radius?
100
Structures Formula
What represents the covalent bonds by dashes and shows the arrangment of calvalently bonded atoms?
100
Mole Ration
What is a convenision factor from the coefficents of a balanced chemical equation interpreted in terms of moles?
100
2AgNO3+H2S-->Ag2S+2HNO3
Balance this Question.. AgNO3+H2S-->Ag2S+HNO3
200
12 C 6 ?
What is the composition of carbon -12 in short hand form?
200
F
Which element has a higher elelctronegativity value: Cl, F
200
Ionic
The melting point of a compound is 1240 degrees C! is this compound most likely an ionic or a molecule compound?
200
Phosphase Ion
Name this Ion: 3 PO 4?
200
H2+S-->H2S
What is Hydrogen + Sulfur hydrogen sulfide as a balance chemical equation?
300
9 be 4
What is the composition of beryllium -9 in ishort hand form?
300
N
Which element has a higher elelctronegativity value: C ; N
300
ceslum
What element is likely to form an ionic compound with chlorine?.... iodine, ceslum and helium
300
Aluminum ion
Name this Ion: 3+ Al
300
Decomposition reaction
What is the chemical change in which a single compound break downs into 2 more simplier products?
400
number of protons in the nucleus
What does the atomic number of each atom represent?
400
Mg
Which element has a higher elelctronegativity value: Mg; Nz
400
Ionic
is MgCl2 ionic or covalent?
400
Selende Ion
Name this Ion: 2- Se?
400
Combustion Reaction
What is a chemical change in which an element or a compound reacts with oxygen often producing energy in a form of light or heat?
500
Mass #= sum os protons and neutrons
What is the difference between the mass # and the atomic number of an atom?
500
As
Which element has a higher elelctronegativity value: As;Ca
500
Covalent
Is the H2O ionic or covalent?
500
Mass and Atoms
What 2 things are conserved in every chemical reaction?
500
number of elements and for compound reacting
What is a good indicator of possible reaction type thus possible products?