Write the electron configuration for the chlorine atom. How can this help you create a bohr model?
1s^2 2s^2 2p^6 3s^2 3p^5
It tells you the number of energy levels and electrons per level.
100
In the covalent compound silicon disulfide, how many total electrons are shared and between who?
8 electrons total are shared in silicon disulfide, as shown below.
S::Si::S
100
Write the formula for Hexaboron Monosilicide.
B6 Si
100
What types of elements are in an ionic compound?
An ionic compound must contain at least 1 metal and 1 nonmetal.
100
What should you compose prior to creating a bohr model for an element to know the number of electrons and energy levels?
You should compose an electron configuration.
200
In the ionic compound sodium fluoride, how many electrons are transferred? What energy level of the bohr model would they be transferred from?
One electron is transferred from sodium to fluoride. It transfers from the 3rd energy level.
200
Will an electron configuration help in the creation of a Lewis Dot symbol?
No. It helps in the creation of a bohr model.
200
Write the name for N2 O5.
Dinitrogen Pentoxide.
200
What type of compound conducts electricity?
Ionic compounds conduct electricity.
200
How do you name a covalent compound?
1. Name the first element in the formula with the appropriate prefix + full name (never use mono- for the first element)
2. Name the second element in the formula with the appropriate prefix + name with "-ide" ending
300
What element's bohr model does the following describe:
4 energy levels, with the # of electrons from inside to outside- 2, 8, 8, 1
Potassium (K)
300
How do you determine the number of dots for a nonmetal needed in a Lewis Dot symbol?
It is determined by the second digit of the column/group the element is in.
300
What is the name of the compound including the 20th element and the 9th element?
Calcium Fluoride.
300
What type of compound has a high melting point? What type has a low melting point?
Ionic compounds have high melting points and covalent compounds have low melting points.
300
An ionic bond is formed by a(n) _________ between 2 opposite charged ions.
Electrostatic force/attraction.
400
Describe rubidium's bohr model. Give an example of who it would create a 1 to 1 compound with (1 bohr model needed per element).
5 energy levels;
# electrons inside to outside: 2, 8, 18, 8, 1;
1 to 1 compounds: F, Cl, Br, I or At
400
How can you further develop a Lewis dot symbol? What can it become and what is the difference? How would S::Si::S look?
A Lewis dot symbol can be further developed as a Lewis structural formula, where the shared electrons become dashes (-) to indicate 2 electrons being shared. For example, S::Si::S would be written as S=Si=S.
400
What is the name of the compound between the 12th element and the 15th element?
Magnesium phosphide.
400
Do covalent compounds have a stronger or weaker intermolecular force than ionic compounds?
Covalent compounds have a weaker intermolecular force than ionic compounds.
400
What is the difference between ionic compounds and covalent compounds?
Ionic compounds transfer electrons, while covalent compounds share electrons.
500
In rubidium fluoride (RbF), how many metal ions and nonmetal ions were needed for the transfer in the bohr models?
1 metal and 1 nonmetal.
500
How would you describe the Lewis Dot symbol for PBr3?
What is it's name?
Br would be on 3 sides of P.
Each Br has 2 dots (:) on each side, with one side connecting with the P in the spots shown.
Br:P:Br etc.
The P has 2 more dots on its final side.
It is Phosphorus tribromide.
500
If the compound contains a transition metal, how would you name it? Use the example FeF3.
1. Undo the criss-cross between the elements; Fe^3, and F^1
2. Name the transition metal with it's charge as roman numerals in parenthesis; Iron (III)
3. Name the nonmental with the usual -ide ending; Fluoride
4. State the metal first followed by the nonmetal; it is called Iron (III) Fluoride
500
Ionic compounds are solids that contain identical formula units and form what?
They form a crystal lattice.
500
What are the 3 steps for forming ionic compounds?
1. Transfer of Electrons.
2. Formation of ions.
3. Attraction of Ions.