periodic table
What does the atomic number tell you?
Number of protons and electrons of an element
Form between
Two or more nonmetal atoms
Forms between
Metal ions and nonmetal ions
Forms between
Metal ions
what is the arrow called in a chemical reaction?
Yields or forms
The explanation for how you would calculate the number of neutrons in an element
Subtract the atomic number from the atomic mass
covalent compounds are also called this
Molecules or molecular compounds
Creates these, and also known as this
Ionic compounds and salts
This is why metallic compounds are good conductors of electricity
The electrons separate from the atoms in a “sea or pool“ which allows charge to flow through it
What are the three properties of a chemical reaction?
Irreversible, forms new substances, can pick up with our senses
Give me an example of an alkaline metal
Mr z decides
Draw a dot diagram of O2
Mr z decides
what Compound do these elements form when placed in a solution (give me symbols): calcium and fluorine
CaF2
These _______ electrons in ______
Share in pools
What is the chemical reaction where something burns?
Combustion
for both of these elements, tell me:
the name, the number of valence electrons, do they gain or lose to be stable. what bond does it form
K and S
Potassium and sulphur, 1 and 6, lose then gain, ionic bond
What is the difference between a polar and a non polar molecule
Unequal electron density in covalent bonds gives the molecule a charge
How do you tell how many valence electrons the transition metals have?
Get it from the periodic table
All of the properties of metallic compounds
Solid at room temp, high melting and boiling points, do not dissolve in water, good conductors, shiny, malleable and ductile
The explanation for the conservation of matter as it relates to chemical equations
There are equal numbers of each type of atom in the products and reactants
The explanation for why a family is different than a group number
group is columns. Family is a collection of elements, which can include several groups, that have similar properties
All of the properties of covalent compounds
Gas, liquid, or solid; low melting and boiling points; do not dissolve in water often; poor conductors; dull appearance
all of the properties of ionic compounds
Solid, Brittle, dissolves in water, high melting and boiling point, conductors when dissolved
The explanation of why metallic compounds are malleable and ductile
Metal ions can slide past each other, with light force, to move to new places (example?)
Tell me what is happening in the following equation:
Mr Z determines if you were right