Using The Periodic Table

Question 1

Which sequence of atomic numbers represent elements which have similar chemical properties?

Accepted Answer

4, 20, 38, 88

Question 2

How can a scientist, find an element with properties similar to another element?

Accepted Answer

by finding its periodic group

Question 3

The horizontal rows of the Periodic Table are called____.

Accepted Answer

periods

Question 4

In the modern periodic table, elements are arranged according to increasing ____.

Accepted Answer

atomic number

Question 5

Which element exhibits both metallic and nonmetallic properties?

Accepted Answer

B

Question 6

An element that is malleable, ductile, and a good conductor of electricity is most likely

Accepted Answer

metal

Question 7

What property makes chlorine, fluorine, and oxygen similar?

Accepted Answer

they are highly reactive nonmetals

Question 8

Which elements in the Periodic Table are least likely to combine with other elements

Accepted Answer

Noble gases

Question 9

Which element is a nonmetal?

Accepted Answer

Oxygen

Question 10

A substance formed when 2 or more elements chemically combine is known as a _____.

Accepted Answer

Compound

Question 11

Which element is a non-reactive noble gas?

Accepted Answer

Krypton

Question 12

What kind of change is this C + O2 -----------> CO2

Accepted Answer

Chemical

Question 13

How many neutrons does Sodium have if it has a mass number 23.

Accepted Answer

12

Question 14

The atomic number of an atom is always equal to the total number of ____.

Accepted Answer

protons in the nucleus

Question 15

Which element would be a poor conductor of heat and electricity?

Accepted Answer

Br

Question 16

Which group from the Periodic Table reacts or combines most readily to form compounds

Accepted Answer

Alkali Metals (Group 1)

Questions 16