Atoms
A negatively charged subatomic particle that orbits the nucleus of an atom.
What is an electron?
The smallest unit of matter that has the properties of an element.
What is an atom?
Anything that takes up space; and has volume and mass.
What is matter?
What is everything around you
Properties of a substance that are observed when a substance changes to produce a different substance.
What are chemical properties?
A positively charge subatomic particle in the nucleus of an atom.
What is a proton?
A combination of one or more elements joined by electron sharing.
What is a molecule?
Matter that has a fixed volume and a fixed shape.
What is a solid?
Electrons _____ the nucleus of an atom
what is orbit
This shows electrons orbiting a nucleus of protons and neutrons.
What is an atomic model?
State of matter in which molecules are far apart and move rapidly
What is the gaseous state
A type of molecule that contains atoms of two or more different elements.
What is a compound?
Matter that has a fixed volume but does not have a definite shape. It can change shape to fit different containers.
What is a liquid?
The number of _____ determines what element you're observing
These are examples of _________properties: acidity, stability, reactivity, flammabiliity, ability to rust
What are chemical properties?
a pure substance made of one type of atom
what is an element
the middle of the atom which contains protons and neutrons
What is the nucleus
The speed of particles and the distance between particles in a substance
What determines the state of matter for a substance?
cooking involves bringing together ingredients to create a dish. If you cook, you have started a _______
what is a chemical reaction
The melting point and boiling point of a substance are examples of ________properties.
What are physical properties?
subatomic particle that has no charge
What is a Neutron
the amount of matter in an object
What is mass
A state of matter that is an electrically charged gas occuring a very high temperatures
What is plasma?
the force which holds atoms together
What is a chemical bond?
A chemical change is also called a _________ reaction.
What is a chemical reaction?