Question 1

A horizontal row of elements on the periodic table is referred to as a family.

Accepted Answer

A) True 
 B)False

Question 2

The systematic (IUPAC)name of CuO is _____.

Accepted Answer

A) copper (I)oxide 
B) copper (II)oxide 
C) copper oxide 
D) copper (II)hydroxide

Question 3

How many neutrons are present in  201 Hg?

Accepted Answer

A) 201 
B) 80 
C) 283 
D) 121

Question 4

Which of the following isotopes has the highest number of neutrons?

Accepted Answer

A) "85Rb" 
B) "28Si" 
C) "79Br" 
D) "83Kr"

Question 5

An _____ provides the relative ratio between the numbers of atoms of the different elements present in a  compound.

Accepted Answer

The answer of An _____ provides the relative ratio between...

Question 6

The molecular formula for rubidium chloride is _____.

Accepted Answer

A) RuCl2 
B) RbCl2 
C) RuCl 
D) RbCl

Question 7

Which of the following pairs of elements can be classified as noble gases?

Accepted Answer

A) H and He 
B) Na and K 
C) Kr and Ar 
D) N and O

Question 8

The systematic name of AlCl3is aluminum chloride.

Accepted Answer

A) True 
 B)False

Question 9

In the context of the modern periodic table, _____ a re examples of transition metals.

Accepted Answer

A) Fe and Zn 
B) Sb and I 
C) Pm and Gd 
D) Al and Ga

Question 10

All polymers form rigid solids at standard temperature and pressure.

Accepted Answer

A) True 
 B)False

Exam 2: Atoms and Molecules

A horizontal row of elements on the periodic table is referred to as a family.