Chapter 4 Review

Electrons

100

What are valence electrons?

Electrons in the outermost shell of an atom. 

200

How many valence electrons does Selenium, Se - have?

6

300

How many core electrons does Bromine, Br have? 

28

400

How many electrons fill the 3rd electron shell?

8 or 18

500

What is the maximum number of electrons that can fill the 4th electron shell?

32

Ions

100

What is an ion?

An atom that has lost or gained an electron and has a charge

200

What is an anion? 

A negative ion

300

What type of atoms form cations? 

Metals

400

What is the ion charge for Arsenic, As? 

-3

500

What is the ion charge for Xenon, Xe? 

0

Ionic Compounds

100

What is the name of this ionic compound? NaCl

Sodium Chloride

200

What is the formula for this ionic compound - Magnesium Bromide? 

MgBr₂

300

What is the Rule of Zero Charge? 

Charges on the anions and cations but add up to equal zero in order for a compound to form. 

400

Write the ionic compound for Calcium Phosphate. 

Ca₃(PO₄)₂

500

Write the ionic compound for Aluminum Acetate. 

Al(C₂H3O₂)₃

Polyatomic Ions

100

Name this polyatomic ion: OH^-

Hydroxide

200

Name this polyatomic ion: SO₃^-2

Sulfite

300

What charge does Carbonate, CO₃ have? 

-2

400

Name this polyatomic ion: MnO₄

Permanganate

500

List one metal that Chlorate (ClO₃) would combine with at a 1:1 ratio. 

Li, Na, K, Rb, Cs, Fr

Electron Configuration

100

What are the four sub-blocks? 

s,p,d,f

200

How many sub-blocks are in energy level (ring) 4? 

3 - 4s, 3d, 4p

300

Write the electron configuration for Phosphorus, P.

1s²2s²2p⁶3s²3p³

400

Write the Noble Gas configuration for Arsenic, As. 

[Ar] 4s₂3d¹⁰4p³

500

Write the Nobel Gas configuration for Lead, Pb. 

[Xe]6s²4f¹⁴5d¹⁰6p²