Isotopes
What is the mass of an atom with 5 protons and 7 neutrons?
12 amu
Carbon-12 (98.89%)
Carbon-13 (1.11%)
What is the average atomic mass?
12.011 amu
What is the charge on a Ga ion?
3+
covalent bonds form between two ( blank )?
nonmetals
Dinitrogen Trioxide
What is the formula
N2O3
If you have an atom of carbon with 7 neutrons, what is the mass?
13 amu
Boron-10 (78.54%)
Boron-12 (21.46%)
What is the average atomic mass?
10.42 amu
What is a charge on a P ion?
3-
What is a covalent bond?
A bond that shares an electron pair
Iron (III) Bromide
What is the formula?
FeBr3
If an atom of oxygen has a mass of 17, how many neutrons does this atom have?
9 neutrons
Nitrogen-14 (92.34%)
Nitrogen-15 (3.87%)
Nitrogen-17 (3.79%)
What is the average atomic mass?
14.15 amu
How are ionic bonds formed?
electrons are transferred from a one atom to another, forming a cation and an anion with opposite charges that are attracted to each other
Is a covalent bond going to form between a polyatomic ion and a nonmetal?
No a covalent bond cannot have an ion in it
Mg(OH)2
Magnesium Hydroxide
If an atom of silver has a mass of 98, how many neutrons does this atom have?
51 amu
Li-7 (2.74%)
Li-5 (62.37%)
Li-8 (34.89%)
What is the average atomic mass?
6.10 amu
After transferring electrons how many dots do you draw for most negative ions?
8
How many bonds can form with a nitrogen molecule?
3
HI
Hydrogen monoiodide
What is the mass of this isotope:
Bromine-80
80 amu
Br-79 (74.3%)
Br-78 (2.4%)
Br-75 (10.2%)
Br-74 (13.1%)
What is the average atomic mass?
77.91 amu
How do you use valence electrons to figure out ion charge?
What is more than 4 subtract 8 from valence electrons (negative), less than 4 the charge is the same as valence electrons (positive)
How many H can bond with a C?
4
NiCl2
What is the name?
Nickel (II) Chloride