Atomic Structure
Periodic Table
Chemical formulas and equations
Counting Atoms
100
This is the building blocks of all matter
Atoms
100
What is the atomic number for Fe
26
100
Which equation is the reactant 2HCl -----> H + 2Cl
2HCl
100
How many total atoms NaCl
2
200
This subatomic particle can be found in the electron cloud
electrons
200
Atomic number is the same as the number of what
Protons
200
The subscript tells you what
How many atoms in a molecule
200
how many atoms of Hydrogen
2H + HCL
3
300
This subatomic particle has a positive charge
protons
300
Atomic numbers increase in increments of _____ on the periodic table
1
300
Which is the coefficient
4NaOH
4
300
What is the total number of atoms 3CO
6
400
These subatomic particles are located in the nucleus
protons and neutrons
400
All elements on the periodic table are considered this
a pure substance
400
The coefficient tells you _____
number of molecules
400
What is the total number of atoms in the reactant
NaCl + 2HCO ------> 2HCl + NaO
8
500
What is the charge of the nucleus
positive
500
How many neutrons does Fe have
30
500
Is the equation balanced or unbalanced
2H + O -------> H2O
balanced
500
Matter cannot be created nor destroyed is known as this
The law of conservation of matter