Elements
An _____________ is a pure substance that is broken down into it simplest form.
element
The nucleus consists of _________ and ___________.
Salt water is a _______________.
solution
The substance or substances that every physical object is composed of.
Matter
_________ is composed of elements.
Matter
An ____________ is a negatively charged particle that spins around the nucleus of an atom.
electron
A _________ ________ is the combination of two or more elements that cannot be physically separated after they are combined.
Chemical Compound
What are three properties of matter?
Mass, Density, and Volume.
The atomic number is the number of ___________ in the element.
protons
A ___________ is a positively charged particle in the nucleus of an atom.
proton
A ____________ is the combination of two or more elements that can be physically separated after they are combined.
Mixture
__________ is the amount of matter contained in an object.
Mass
Name four ways to identify an element on The Periodic Table of Elements.
atomic number, atomic mass/weight, symbol, name
A ___________ is a neutral particle in the nucleus of an atom.
neutron
A solution is made from a ________ and a __________.
solute; solvent
____________ is the amount of space an object takes up.
Volume
Name the chemical formula for water and salt.
water is H2O and salt is NaCl
An _______ _________ is used to describe where electrons are when they go around the nucleus of an atom.
electron cloud
A ____________ is a mixture in which molecules are dissolved and uniformly distributed into one another.
solution
This is the measure of how light or heavy something is for its size.
Density