Bohr Models
What is the maximum number of electrons that can occupy the first energy level in a Bohr model?
2
What trend is observed with the atomic number as you move from left to right across a period in the periodic table?
It increases by one each time.
What is the name of the compound NaCl?
Sodium chloride
What is the formula for Calcium Chloride?
CaCl₂
What does the law of conservation of mass state?
Mass cannot be created or destroyed in a chemical reaction?
How many energy levels are present in a chlorine atom?
3
What happens to the atom's size as you move down a group in the periodic table.
It increases
How do you name the compound CO₂?
Carbon dioxide
What is the formula for Iron(III) Oxide?
Fe₂O₃
What is the balanced form of the equation: Na + Cl₂ → NaCl?
2 Na + Cl₂ → 2 NaCl
In a Bohr model, what do the rings represent?
Energy Levels
Elements in the same group of the periodic table have similar what?
Chemical properties.
What is the correct name for the ionic compound MgO?
Magnesium oxide
Write the formula for Diphosphorus Pentoxide.
P₂O₅
Why is it important to balance chemical equations in relation to the conservation of mass?
To ensure that the same number of atoms of each element are present on both sides
Which element has 5 electrons in its Bohr model?
Boron
What is the significance of the staircase line on the periodic table?
It differentiates metals from nonmetal.
Name the covalent compound N₂O.
Dinitrogen Monoxide
What is the formula for Barium Sulfate?
BaSO₄
Balance the equation: C₃H₈ + O₂ → CO₂ + H₂O.
C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O
Describe what happens to the energy of an electron when it moves from a higher energy level to a lower energy level.
What is it releases energy
Identify the element located in period 4, group 14 of the periodic table.
Germanium (Ge)
What is the name of the compound Al₂(SO₄)₃?
What is Aluminum Sulfate?
Write the formula for Ammonium Nitrate
NH₄NO₃
Balance the following equation: Al + O₂ → Al₂O
4 Al + 3 O₂ → 2 Al₂O₃