Atoms (General)
Atoms are composed of these 3 subatomic particles.
protons, neutrons, and electrons
An element is thebasic unit of a substance that cannot be ___________
simplified, broken down
A particle that contains more than one atom joined together is called a _________________
molecule
How many elements and atoms are in H2O?
Elements: 2
Atoms: 3
Is salad a compound, element, or mixture?
mixture
subscript
Ne is the chemical symbol for this element.
neon
The number of sodium atoms in table salt. Hint: the symbol for table salt is NaCl
1 sodium atom
How many elements and atoms in 2CaO?
Elements: 2
Atoms: 4
Is air a compound, element, or mixture?
mixture
What is the 3 called in 3C6H12O6?
coefficient
Chart used by scientist to list all the elements.
periodic table
Name the 3 elements in C9H9O4?
carbon, hydrogen, oxygen
How many elements and atoms in CaCO3?
Elements: 3
Atoms: 5
Is iron a compound, element, or mixture?
The elements that go into an equation (to the left) are called ______________?
reactants
Number of calcium atoms in 2CaO
two
C6H12O6 is one molecule of ________________
sugar
How many elements and atoms in 2Al2SO4?
Elements: 3
Atoms: 14
Is water a compound, element, or mixture?
In the chemical equation H2 + O = H2O, what is the product?
H2O
Total number of elements in the periodic table
118
Name the elements in the compound 2Al2SO4?
Aluminum, Sulfur, and Oxygen
How many elements and atoms in 3C9H9O4?
Elements: 3
Atoms: 66
Is sugar a compound, element, or mixture?
compound