characteristics of matter
Subatomic particles/atoms
more atoms/elements
characteristics of elements
More characteristics/formulas
100
what is the state of matter where the atoms zoom past each other the quickest
gas
100
what subatomic particle has a negative charge but has no significant mass
Electron
100
what are the subatomic particles that alter an atom's reactivity
electrons
100
Good conductors or heat and electricity
Luster (shine)
Malleable (bend, don’t break)
Ductile (can be drawn out into wires)
Metals
100
Poor conductors
Dull appearance (not shiny/no luster)
Gain electrons (bond) easily
Decent insulators
Brittle (break easily)
Non-metals
200
describe a solid
tightly packed, vibrating in place
200
What subatomic particle has a positive charge and has the mass of 1AMU
The proton
200
a horizontal row of elements in the periodic table
a period
200
The most reactive group of metals
The Alkali Metals
200
how many naturally occurring elements are there on the periodic table?
92 naturally occurring elements.
300
describe a liquid
flows freely past each other, takes the shape of it's container,
300
What kind of subatomic particle pair does a proton have?
Each proton has an electron pair.
300
How many protons does this element have?
14 protons
300
These elements aren't rare, but are called so because they are difficult to separate from their mixtures.
The rare earth elements
300
Describe an Isotope
The same exact element, just with a greater amount of neutrons. This can cause instability.
400
what phase of matter has a definite shape and a definite volume?
solid
400
When an atom has a different number of neutrons, what do we call this?
An isotope
400
is nitrogen a solid? If not, what is the state of matter is it in?
No, its a gas
400
The staircase of "wannabe metals"
metalloids
400
How do you get the atomic mass of an atom?
Protons + Neutrons = Atomic mass
500
what phase of matter has an indefinite shape and an indefinite volume
Gas
500
When an atom doesn't have a neutral charge, and it has either a positive or a negative charge, what do we call this?
We call this a positive/negative ion or a cation/anion.
500
elements that react similarly are in the same..
family
500
the lightest element known
hydrogen
500
Where is an electron
electron cloud/outer shell