Matter
State of matter with no shape but a definite volume
What is a liquid?
Negative charged particle
What is an electron?
Group 1 of the table
What are Alkali Metals?
An atom with 35 protons and 45 neutrons
What is Bromine?
Scientist who created the first periodic table
Who is Mendeleev?
The state of matter most affected by a change in pressure
What is a gas?
The two particles found in the nucleus of atom
What are protons and neutrons?
Least reactive group, full outer level of valence electrons
What are noble gases?
Mass number equals ___________ + ____________
What is protons + neutrons?
A column on the table
What is a group?
Solid changing to a liquid
What is melting?
The particle that changes in an isotope
What are neutrons?
Metals found in groups 3-12 of the table
What are transition metals?
Atomic Size is greatest where?
A row on the table
What is a period
A change that leads to the formation of a new substance
What is a chemical change?
The outermost electrons in an atom
What are valence electons?
Good conductors, shiny, most of the table
What are metals?
What is an ion?
Atomic Number tells us the number of __________
What are protons?
Calculation for density
An atom with a positive charge
What is a cation?
Elements found along stairstep of periodic table- characteristics of metals and non-metals
What are metalloids?
Carbon-12, Carbon-13, Carbon-14 are ____________ of one another.
What are isotopes?
The periodic table is arranged by _______________
What is atomic number?