EXAMPLE 2.2 Writing the Symbols for Atoms Write the symbol for the atomm that ha

Question

EXAMPLE 2.2 Writing the Symbols for Atoms Write the symbol for the atomm that has an atomc amber of 9 andamber of 19 How many electrons and how many neutrons does this atom lune 2. EXAMPLE 2.3 Naming Type I Binary Compounds Name each binary compoand 3. EXAMPLE 2.4 Formulas from Names for Type I Binary Compounds Given the following systematic names, write the formula for each compound a. potassium sodade b, calcium oxide .galliam bromide 4. EXAMPLE 2.6_ -Naming Binary Compounds 1. Give the systematic name for each of the following compounds: 2. Given the following systematic names, write the formula for each compound a. Chromium(III) chloride b. Gallium iodide 5. Naming Compounds Containing Polyatomic Ions EXAMPLE 2.7

Explanation / Answer

2.

199F

Number of protons = number of electrons = atomic number = 9

Number of neutrons = 19 - 9 = 10

3.

(a) Caesium fluoride

(b) Aluminium chloride

(c) lithium hydride

4.

(a) KI

(b) CaO

(c) GaBr3

5.

(1)

(a) Cobalt(II) bromide

(b) Calcium chloride

(c) Aluminium oxide

(2)

(a) CrCl3

(b) GaI3

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