The Periodic Table

Question 1

One of the diatomic molecules is located in group 7a. It is a greenish-yellow gas that is commonly used. What is it?

Accepted Answer

Chlorine

Question 2

What is the definition of diatomic molecules?

Accepted Answer

Are composed of only atoms of same or different chemical elements.

Question 3

Which of the following elements exist as liquids in room temperature?

Accepted Answer

Bromine

Question 4

Are all gases diatomic molecules?

Accepted Answer

False

Question 5

What is the difference between Oxygen and Carbon?

Accepted Answer

Oxygen is one of the diatomic molecules.

Question 6

Can elements that are diatomic be on its own?

Accepted Answer

False

Question 7

Elements that are semi-metals include: Boron, and Tellurium.

Accepted Answer

True

Question 8

Which of the following is one of the diatomic molecules

Accepted Answer

Fluorine

Question 9

What is special about Mercury?

Accepted Answer

Not long ago, it was discovered that it is very toxic., One of the few elements that are liquid during room temperature.

Question 10

Where is group 5a located in the periodic table?

Accepted Answer

Located towards the right side of the table.

Question 11

What element located in group 1a is one of the diatomic molecules?

Accepted Answer

Hydrogen

Question 12

What elements are metalloids?

Accepted Answer

B, Si, Ge, As, Sb, Te, Po

Question 13

What is special about Nitrogen? Select all that apply.

Accepted Answer

Need to be paired up to have enough electrons., It has five valence electrons.

Question 14

What are some properties of the elements in group 14? Select all that apply.

Accepted Answer

Tin and lead are poor conductors., They tend to loose elements, making them positive ions.

Question 15

What makes electrons radioactive?

Accepted Answer

Amount of electrons.

Question 16

Is Helium a semimetal?

Accepted Answer

No, because it is located in the left of the staircase.

Question 17

What are the elements that belong to group 2a?

Accepted Answer

Be, Mg, Ca, Sr, Ba, Ra

Question 18

Why is group 16 called, "The Chalcogens"?

Accepted Answer

Many elements are extracted from the sulphide or oxide ores.

Question 19

What are properties of nonmetals? Select all that apply.

Accepted Answer

Poor conductors of heat and electricity., They are the complete opposites of metals., Have low boiling and melting points.

Question 20

What element exist as diatomic molecules in normal temperatures? Select all that apply.

Accepted Answer

Idoine, Bromine

Question 21

How do you remember diatomic molecules? Hint: Acronym

Accepted Answer

Have No Fear Of Cold Iced Beer.

Question 22

Are all elements liquid at room temperature?

Accepted Answer

False

Question 23

What is the ion charges for group 3a?

Accepted Answer

positive

Question 24

What is true about noble gases in group 18? Select all that apply.

Accepted Answer

All are stable and have little radioactivity., Have zero charge., Contains: He, Ne, Ar, Kr, Xe, Rn, and Uuo

Question 25

How do you identify semi-metals on the periodic table?

Accepted Answer

They make up the staircase that separates metals and non-metals.

Question 26

How many diatomic molecules are out there?

Accepted Answer

7

Question 27

Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, and Polonium are all semimetals.

Accepted Answer

True

Question 28

In group 3a, there's boron. It is a non-metal. How many valence electrons does it have?

Accepted Answer

3

Question 29

How many valence electrons does Antimony have?

Accepted Answer

5

Question 30

Why are the Alkali Metals the most radioactive elements in the periodic table?

Accepted Answer

When in contact with water, they become reactive to release hydrogen.

Question 31

What are the properties of metalloids? Select all that apply.

Accepted Answer

Semiconductors., Some possess metallic luster.

Question 32

Hydrogen is one of the elements in Alkali metals.

Accepted Answer

False

Question 33

Claim: The Halogen group contains metals.

Accepted Answer

False

The Periodic Table

Questions 33

The Periodic Table

Questions 33