Atoms
The particle with a positive charge
What is a proton?
Anything that has mass and takes up space
What is matter?
Has a definite volume but not a definite shape
What is a liquid?
Center of an atom. Contains most of the atom's mass.
What is the nucleus?
This is the organized chart of elements
What is the periodic table of elements?
The particle with a negative charge
What is an electron?
The amount of matter in an object
What is mass?
Has a definite shape and volume
What is a solid?
Total number of protons and neutrons in the nucleus of an atom
What is atomic mass?
Matter that is made of only 1 type of atom
What is an element?
The particle with a neutral charge
What is a neutron?
The smallest part of matter (aka the building block of matter)
What is an atom?
Molecules move quickly and bounce off of one another
What is gas?
The number of protons in an atom. Also the way the elements are numbered.
What is atomic number?
Most of the volume of an atom is occupied by
What is empty space?
Particles that are located in the center of an atom (nucleus)
What are protons and neutrons?
When a liquid is cooled it turns into...
What is a solid?
Another names for the states of matter
What are the phases of matter?
The space outside the nucleus where negatively charged particles are found.
What is an an electron cloud?
Rows on the periodic table are called
What are periods?
A place where electrons are located
A direct change from a solid to a gas is called...
What is sublimation?
An unusual state of matter (fourth state of matter)
What is plasma?
The atomic number is the same as...
What is the number of protons and electrons?
Columns on the periodic table are called
What are groups or families?