Atoms
This is a small particle that makes up most types of atoms on earth
What is an atom
Made up of only one kind of atom
What is an element
Mass is the measurement of what?
How much matter
These are found on the right side of the periodic table
What is metalloids and non metals
What are the three parts of the atom?
Protons, Neutrons, Electrons
This is an uncharged particle in the nucleus of the atom.
What is a neutron
These are on the periodic table
What is an element
Anything that has mass and takes up space
What is matter
This is the number of protons in the nucleus of each atom of an element
What is the atomic number
Water has a density of 1 g/ml which of these will float in water?
Acetone .785 g/ml
Glycerol 1.26
Acetone
Atoms are the smallest form of matter that have the same properties as the element (T/F)
True
These are shiny, good conductors of heat and have luster
What is a metal
Most of an elements mass is in the nucleus (T/F)
What is true
This is the sum of the an atom's protons and neutrons
What is mass number
How do you determine the number of neutrons in an element?
atomic mass - protons = neutrons
This is a positively charged particle in the nucleus of the atom
What is a proton
These are poor conductors of heat and electricity. They are dull in appearance
What is a non metal
True or False- heat is matter
What is false
An element with an atomic number of 30 has how many protons?
30
In what state of matter (gas, solid, liquid) are the molecules moving the fastest?
Gas
This is a negatively charged subatomic particle
What is an electron
Elements that have characteristics of metals and non metals
What is a metalloid
The formula for density is ?
D=M/V
the atomic number increases as you go left to right in a period on the periodic table (T/F)
True
Do molecules in a solid move?
Yes - They vibrate in a fixed location