BR Diagrams
How many protons and electrons are in a neutral oxygen atom?
What are 8 protons and 8 electrons?
How many valence electrons does sulfur have?
What is 6?
What charge does sodium form?
What is 1+?
Write the formula for potassium chloride.
What is KCl?
Name N₂O₄.
What is dinitrogen tetroxide?
Write the electron arrangement (shells) for carbon.
What is 2–4?
Draw the Lewis diagram for aluminum.
What is Al with 3 dots?
What charge does oxygen form?
What is 2−?
Write the formula for magnesium bromide.
What is MgBr₂?
Write the formula for sulfur hexafluoride.
What is SF₆?
How many valence electrons does phosphorus have?
What is 5?
How many bonding pairs are in O₂?
What are 2 bonding pairs (a double bond)?
Write the ion formed by nitrogen.
What is N³⁻?
Write the formula for aluminum oxide.
What is Al₂O₃?
Name P₂O₃.
What is diphosphorus trioxide?
Draw or describe the Bohr diagram for magnesium (atomic number 12).
What is 2–8–2 (12 protons, 12 electrons)?
Draw the Lewis structure for water.
What is H–O–H with 2 lone pairs on oxygen?
Why does calcium form a 2+ ion?
What is it loses 2 valence electrons to achieve a full shell?
Write the formula for lithium nitride.
What is Li₃N?
N₂O₅. (Be careful with spelling.)
What is dinitrogen pentoxide?
Which element has the electron arrangement 2–8–7, and what ion will it form?
What is chlorine, and it forms Cl⁻?
How many total valence electrons are in CO₂?
What is 16 valence electrons?
(4 from C + 6×2 from O)
Which will form a larger ion: Na or Na⁺? Explain.
What is Na (neutral atom) is larger because Na⁺ lost an electron shell?
Write the formula for calcium phosphate (PO₄³⁻).
What is Ca₃(PO₄)₂?
A compound is composed of a metal and a non-metal. It conducts electricity when melted. What type of compound is it?
What is an ionic compound?