Valence Electrons
Where do we find the number of valence electrons on a periodic table?
The box on top of the column
TRUE or FALSE: Metals always lose valence electrons
TRUE
TRUE or FALSE: Ionic compounds are made between a metal and a metal
False - a metal and a nonmetal
When naming ionic compounds, which element do we always list first?
The metal
TRUE or FALSE: We draw the number of valence electrons when drawing Bohr Models
FALSE - we draw electrons (not valence)
What is the highest number of valence electrons?
8
What is the valence charge of Calcium?
2+
When writing the formula for an ionic compound, what is the next step after finding out the charges for each element?
Cross the charges
What do we change the ending of the non-metal to?
-ide
What two things need to be listed in the nucleus when drawing a Bohr Model?
The amount of protons and neutrons
How many valence electrons does Ga have?
3
What is the valence charge of Nitrogen?
3-
TRUE or FALSE: After have to show the charges (plus or minus signs) in your final ionic compound formula
FALSE
What new name would we change Iodine to in an ionic compound?
Iodide
18 electrons
How many valence electrons does Tellurium have?
6
TRUE or FALSE: Metals gain valence electrons and have a positive charge
Write the correct formula for: KO
K2O
Name the following compound: LiP
Lithium Phosphide
Draw the Bohr Model for the element: Fluorine
(You need to have the correct protons and neutrons in the center)
Protons: 9
Electrons: 9
Neutrons: 10
Drawing: 2 electrons on first shell, 7 electrons on second shell
TRUE or FALSE: Elements always lose valence electrons
FALSE
What is the valence charge of Selenium?
2-
Write the correct formula for: MgAs
Mg3As2
Name the following compound: KS
Potassium Sulfide
Draw the Bohr Model for the element: Iron
(You need to have the correct protons and neutrons in the center)
Protons: 26
Electrons: 26
Neutrons: 30
Drawing: 2 e. on level 1, 8 e. on level 2, 16 e. on level 3