Vocab Terms
What is made of 1 type of atom?
Elements are made of one type of atom
What is the chemical symbol or letter for nitrogen?
Which of the following in this list are compounds?
K, Br, NaCl, or CO2
NaCl and CO2 are compounds because they are made of 2 or more different atoms bonded together
In the chemical formula H2O, how many Hydrogen atoms are there?
There are 2 Hydrogen atoms
What is made of 2 or more different atoms?
A compound is made of 2 or more different atoms
What is the chemical symbol for oxygen?
Oxygen is written with a capital O
Is Br a compound or element?
Br is an element because it has a capital letter and no subscript
How many Carbon atoms are in C6H12O6
There are 6 carbon atoms
What is the smallest unit of matter?
An atom is the smallest unit of matter
What is the chemical symbol for carbon?
Carbon is written with a capital C
Is table salt a compound or element?
Table salt includes Sodium and Chlorine like NaCl
Salt is a compound because it has 2 or more different atoms
How many Sulfur atoms are in H2SO4
There is only 1 Sulfur atom
What is the chart called where you find elements?
The Periodic Table of elements
What is the chemical symbol for Sodium?
Sodium is written with a capital N and a lowercase a like Na
Which of these is a compound?
O2 or CO2
O2 is an element because there are 2 oxygen atoms
CO2 is a compound because it is made of 2 or more different atoms
How many oxygen atoms are in H2O2
There are 2 oxygen atoms
What is the difference between a Chemical Symbol and the Chemical Formula?
Chemical symbol is the 1 or 2 letters written for each element. Example Nitrogen is written with N
Chemical Formula includes numbers and letters but can look like:
H20 or NaCl
What is the chemical symbol for sulfur?
Sulfur is written with a capital S
Which of these is a compound?
H3 or NH3
NH3 is the compound because it is made of two or more different atoms
How many Hydrogens are in C2H5OH
There are 6 total Hydrogen atoms