What is matter made out of?
Atoms
What subatomic particle determines the type of atom?
protons
What charge do neutrons have?
no charge or neutral
What is matter?
Anything that has mass and takes up space
What are atoms?
The building blocks of matter
or
the smallest basic particle that makes up an element
What are physical properties?
Characteristics observed without changing the substance into a new substance
What charge do protons have?
positive charge
What is made when 2 atoms combine?
a molecule
atomic mass is determined by adding
protons + neutrons
What subatomic particles determines the atoms mass?
protons and neutrons
What charge do electrons have?
negative charge
There are 12 protons and 12 neutrons in an atom. What is the atomic number?
24
What are chemical properties?
Characteristics that can be observed when changing the substance into something new
Where will one find the neutrons and electrons?
the nucleus or the middle
An atom with a stable nucleus has,
the same number of protons and neutrons
What are chemical properties?
Characteristics observed when a substance changes into something new
Where would one find the electrons?
the electron cloud or floating on the outside of the atom