Atoms and Elements
Periodic Table
Bohr Models
Bonding
Types of & Balancing Chemical Equations
100
The smallest unit of matter
What is an atom?
100
The name of the group of elements having 1 valence electron.
What are Alkali Metals?
100
The center where the protons & neutrons are located.
What is the nucleus?
100
In an ionic bond _____________ elements transfer valence electrons to ____________ elements
What is metal and nonmetal?
100
Matter cannot be created or destroyed. It simply changes forms.
What is the Law of Conservation of Mass?
200
Protons + Neutrons
What is the atomic mass?
200
The periods or horizontal rows tell us...
What are energy levels?
200
2, 8, 18, 32
What is electron configuration?
200
In a ___________ bond, _______ share valence electrons.
What is covalent bond, nonmetals share?
200
The number of oxygen atoms found on the reactant side and the number of oxygen atoms found on the product side.
What is 4?
300
The ______________ identifies an atom
What is atomic number or number of protons?
300
The name of the group with 7 valence electrons.
What are the Halogens?
300
Three names for where the electrons are located.
What are shells, orbits, energy levels?
300
Group 2 elements ______ valence electrons to become _______________ ions.
What is lose to become positive cations?
300
Type of reaction with 2 compounds on the reactant side and 2 compounds on the product side.
What is double replacement reaction?
400
In a neutral atom the number of ________ = the number of ____________.
What is the number of protons = the number of electrons?
400
Groups on the Periodic Table tells us
What are the valence electrons?
400
The outer level electrons.
What are valence electrons?
400
Oxygen gains ____ valence electrons to become a(n) ________ ion.
What are 2 valence electrons to become a negative anion?
400
The balanced chemical equation for the synthesis of water.
What is 2H2 + O2 → 2H2O?
500
What is A -atomic number
B -chemical symbol
C -name of element
D -atomic mass
500
This group on the periodic table all contain full valence shells
What are Noble Gases?
500
This atom is _______ found in group _______.
What is Nitrogen found in group 15?
500
What is a(n) covalent bond?
500
Type of reaction
What is combustion reaction?