vocabulary
what is a cation
a positively charged ions
Is Ununbium
a) metal b) nonmetal c) metalloids
a) metal
How many electrons are on the first orbital
What is Ionic bonding?
Ionic bonding is a chemical bond between two different elements.
What is a compound?
When 2 or more elements are combined chemically.
What does amu stand from?
Atomic mass units?
Is Mercury
a) nonmetal b) metal c) metalloid
b) metal
Is Fluorine with the atomic mass 20 an isotope
a) true b) false
True
What is Molecular mass?
Molecular mass is the combined mass of each atom in a molecule.
True or False- the Lewis structures were developed by Gilbert Newton Lewis in the early 1800's to illustrate electrons.
False- was created in the early 1900's
What is an atomic mass?
It is the number of protons and electron.
What are the electron by orbitals for Chlorine
2-8-7
what is a solid that is only liquid and gas
dry ice etc
Does Sulphur take or give valence electrons?
Sulphur takes Valence electrons.
What is a Lewis Structure?
A Lewis structure are valence electron dot diagrams.
What is a valence electron?
It is the outer most orbit of an atom
(the atomic number of Sr)+ (the atomic mass of K) -(the number of neutrons in Mg)
65.098
What is the last periodic element add to the Table?
Ununoctium
What is the formula for the mole?
6.022x1023
..
H-O-H
..
What is a homonuclear diatomic?
a group of molecules that are made up of the same type of atom.
Bromine = 2-8-18-7
Would this element give or take its electrons?
Take
Metalloids produce heat and electricity better than metals
a) True b) False
False
What is the molecular mass for N2O?
44MM
What is the Lewis Structure for Ethane?
C2, H6
H H
l l
H - C - C - H
l l
H H