Definitions
Compound
Two or more elements bonded together
Examples: NaCl, H2O
What are the three states of matter?
Solid, Liquid, and Gas
What type of property is a characteristic that is observed or measured without changing the identity of the substance?
Physical Property
What is the most reactive group on the periodic table?
Alkali Metals
What does water do when it freezes?
It expands
Matter
Anything that takes up space and has mass
What state(s) of matter have a definite volume?
Solid and Liquid
What is a property that describes a substance's ability to change into something new?
Chemical Property
What is the least reactive group on the periodic table?
Noble Gases
What is the most abundant element in the universe?
Hydrogen
Atom
The building block of matter, smallest unit of an element that maintains that elements properties
What state(s) of matter have a definite shape?
Solid
Ripping paper is an example of what change?
Physical Change
Name one Transition Metal?
Answers may vary.
What is the chemical name for water?
Dihydrogen monoxide
Element
Pure substance of only one type of atom
Examples: Na, C, H
From slowest to fastest, order the states of matter by the speed of the particles.
Solid, Liquid, Gas
Photosynthesis is an example of what change?
Chemical Change
Rows are known as what in the periodic table.
Periods.
What is dry ice?
Solid form of carbon dioxide
Chemistry
The study of the composition, structure, and properties, of matter and the changes it undergoes
What is the fourth state of matter?
Plasma
What are the three out of the four signs of a chemical change?
1. Unexpected color change
2. Gas production
3. Energy change
4. Precipitate formation
What is a valence electron?
The electron(s) in the last shell of an element.
Ex: Alkali Metals have one, Noble Gases have eight.
What is a solid element that is liquid at room temperature?
Mercury or Bromine