Atoms
What forms atoms together?
Chemical Bonds
What is a Molecule?
A molecule is any group of two or more atoms chemically bonded together.
What is the Coefficient in 7H2o?
7
True or False: Elements are the simple building blocks of matter.
True
Where can you find every element?
The periodic table of elements.
Where is the nucleus found in an atom?
The Center
What is H2o made up of?
2 Hydrogen and 1 Oxygen
What does a Subscript do?
It tells how many atoms there is in each molecule
What Elements is water composed of?
Hydrogen and Oxygen
What is the structural formula for water?
H-O-H
What are atoms made up of?
Protons, Neutrons, and Electrons
Every Molecule in a compound contains at least ______ different types of atoms in it.
2
How many Molecules are in 5H2o?
5
What do you call it when a substance contains one type of atom?
An Element
Multiple Choice:How many times smaller is an atom compared to width of hair?
A. 1,000,000 B. 100,000
C. 1,000 D. 10,000
B. 100,000
What do Electrons do for atoms?
Electrons affect how atoms interact with others atoms
How are Molecules formed?
When 2 or more atoms bond together
Scientists refer to different types of molecules by their__________
Chemical Formula
What is the difference between an element and a compound?
An element is a pure substance of one atom but a compound is composed of 2 or more elements
What is the symbol of Gold on the Periodic Table?
AU
What is a Mixture?
A combination of 2 or more substances that are physically mixed together.
Which of the following is NOT a compound?
A. Iron B. Table Salt
C. Dry Ice D. Rust
A. Iron
Say how many atoms there are of each molecule in C12H22O11?
12 Carbon, 22 Hydrogen, and 11 oxygen
How many elements are on the periodic table?
118 Elements
Multiple Choice: How many water molecules are in a drop of water?
A. 1,500,000,000,000,000,000,000
B. 1,000,000,000,000,000,000,000
C. 1,550,000,000,000,000,000,000
D. 1
A. 1,500,000,000,000,000,000,000