Atoms
what is an ion
A charged atom
what is a chemical bond
A bond between 2 elements to make a stable arrangement of valence electrons
Which atomic group has the most amount of elements
Metals
How many valence electrons does aluminum haves
3
Balance:
_N2+_H2->NH3
1/2, 1 1/2, 1
what is a valence electron
the electrons on the last orbital
what is a polar bond
a bond where the electrons aren't shared equally between 2 atoms
What state of matter has definite volume and indefinite shape
How many orbitals does Sulfur have
1
Balance
_AlBr3+_K2S04->+KBr+_Al2(SO4)3
what 3 subatomic particles
protons, neutrons, electrons
What is a non-polar bond
A non-polar bond is when the electrons are shared equally between two atoms making this atom neutral.
Give an example of solid, liquid, gas and plasma
anything, water, smoke, lightning
How many Neutrons does silicon have
14.086
_C8H18+_O2->_CO2+_H2O
1, 12.5, 8, 9
what is a polymer
a polymer is a large molecule made up of smaller molecules connected by covalent bonds.
Covalent bond
the force of attraction between two atoms that share a pair of valence electrons.
plasma is made by heating a gas until its electrons have sufficient energy to escape the hold of the positively charged nuclei.
What element has an atomic symbol of Lu
Lutetium
Balance:
_Na+_H2O->_NaOH+_H2
2, 2, 2, 1
what is the difference between a Lewis and a Bohr model
a Lewis model doesn't show the number of protons and neutrons, unlike a Bohr model.
Ionic Bond
Metal gives up electrons to a non-metal
what is a solid to a gas
sublimation
who invented the periodic table
Dmitri Mendeleev
_H2SO4+_NaNO2->_HNO2+_Na2SO4
1, 2, 2, 1