Determining P, N, E
How many protons does oxygen have?
What is 8 protons
Unlike ionic bonds that transfer electrons, this type of bond involves atoms to have multiple charges.
Covalent
Name the following compound: NaCl
Sodium Chloride
A substance composed of only one type of atom
Element
How many calcium atoms are in the following compound?
2 CaO
Two
What is the number of P, N, E in Cobalt?
27 protons, 32 neutrons, 27 electrons
In a molecule of water (H2O), this is the total number of hydrogen atoms bonded to the single oxygen.
Name the following compound: MgBr2
Magnesium bromide
A charged element
Ion
number of carbon atoms: CH3COOH
2 carbon atoms
Number of neutrons in uranium
146 neutrons
In a single covalent bond, atoms share this many total electrons.
Two (one pair)
Write the formula: Iron (II) nitride
Fe3N2
Two or more different atoms bonded together
Compound
Total # of atoms present in 3 BaCl2
9 atoms
To form an ionic bond with Chlorine, a Sodium atom—which has 11 protons—must lose this many electrons to achieve a +1 charge.
One
This is the prefix used in a molecular compound name (like Carbon Dioxide) to show there are two of a certain atom.
Di-
Name the following compound: Sn(ClO3)2
Tin (II) chloride
A group of bonded particles that form an overall charge
Polyatomic ion
Number of oxygen atoms in the following compound
10 NaHCO3
30 oxygen atoms
The polyatomic Hydroxide ion (OH−) contains 9 total protons; because of its negative charge, it must have this many total electrons.
10
To be stable like a Noble Gas, most atoms in a molecular compound want to share enough electrons to have this specific number in their outer shell
8 electrons
Name the following compound: Pb(SO3)2.
Lead (IV) sulfite
The method used to determine subscripts
Criss-cross method
Total atoms in the following compound: 2 Al2(SeO4)3
34 atoms