Early Chemistry
The study of matter, its properties, how it interacts with other matter, and the energy changes involved is what?
Chemistry
The smallest unit of matter is what?
Who created the periodic table?
Dmitri Mendeleev
This subatomic particle has a positive charge.
Proton
A mixture that is uniform throughout is called this.
Homogeneous
The father of modern chemistry.
Groups of atoms bonded together is what?
A Molecule
What is an element?
Pure substances made of one type of atom
This subatomic particle has no charge.
Neutrons.
A mixture where you can see the different parts is called this.
Heterogeneous
Solids, Liquids, and Gasses are examples of what?
States of Matter
This type of bond forms when atoms share electrons.
Covalent bond?
The periodic table is arranged by increasing this number.
Atomic Number
Electrons are found in these regions around the nucleus.
Energy levels (or electron shells)
A solution is made of a solute and this substance that does the dissolving.
Solvent
This scientist developed the first atomic theory in the early 1800s.
John Dalton
When a metal and a nonmetal transfer electrons, they form this type of bond.
Ionic Bond
This group of elements is known for being unreactive.
Noble Gases
The number of protons in an atom is also called this.
Atomic Number
A mixture of metals, like brass or steel, is called this.
Alloy
This ancient Greek philosopher first proposed the idea of indivisible particles called “atomos.”
Democritus
PANE stands for?
Protons=Atomic Number=Electrons
Elements that have properties of both metals and nonmetals are called this.
Metalloids
Isotopes of an element have different numbers of these particles which also have either no charge or a negative charge.
Neutrons.
A type of mixture where particles do not settle and light scatters through it is called this.
Colloid