Periodic Table

Question 1

What is the periodic table?

Answer 1

A list of all known elements.

Question 2

How is the periodic table organized?

Answer 2

Its organized by increasing atomic number.

Question 3

What are the 3 types of elements on the periodic table?

Answer 3

Metals, Non-metals, and Metalloids.

Question 4

What is on the left side of the periodic table?

Answer 4

The metals with the greatest metallic properties.

Question 5

What is on the right side of the periodic table?

Answer 5

The elements with the least metallic properties (Non-metals)

Question 6

What are the elements in the middle of the periodic table?

Answer 6

Transition elements (properties change from metals to non-metals)

Question 7

What are metalloids and where are they?

Answer 7

Metalloids are a small group of elements that zigzag between the metals and nonmetals. They have both metallic and nonmetallic propertices.

Question 8

What are the vertical columns on the periodic table called?

Answer 8

groups or families

Question 9

What are the horizontal rows on the periodic table called?

Answer 9

periods

Question 10

If two elements are in the same group or family, what do they have in common?

Answer 10

They have the same number of valence electrons (what determines the elements chemical properties including reactivity)

Question 11

Where are the valence electrons on the atom?

Answer 11

They are on the outer layer of the atom.

Question 12

How many groups or families are there?

Answer 12

18

Question 13

What makes hydrogen special?

Answer 13

It doesn’t belong in any groups, its very reactive, colorless, odorless, and only has one valence electron.

Question 14

What is group 1?

Answer 14

Alkali metals (extremely reactive, shiny, silver, low density, and soft)

Question 15

What is group 2?

Answer 15

Alkaline - earth metals (Slightly less reactive, silver, slightly more dense)

Question 16

What are groups 3-12?

Answer 16

Transition metals (moderate range or reactivity, wide range of properties, usually shiny, good conductors of heat and electricity). Have 1-2 valence electrons.

Question 17

What and where are Lanthanides and Actinides?

Answer 17

Located at the bottom, these are also transition metals. Lanathanides are shiny and reactive. Actinides are radioactive and unstable.

Question 18

What is group 13?

Answer 18

Boron (Reactive and have 3 valence electrons (group num - 10))

Question 19

What is group 14?

Answer 19

Carbon (have varied reactivity)

Question 20

What is group 15?

Answer 20

Nitrogen group (varied reactivity)

Question 21

What is group 16?

Answer 21

Oxygen group (reactive)

Question 22

What is group 17?

Answer 22

Halogens ( all non metal, very reactive, poor conductors, form salts with metals)

Question 23

What is group 18?

Answer 23

Noble gases (all non metal, unreactive, colorless, odorless)

Question 24

How many valence electrons does Helium have?

Answer 24

2

Question 25

Whats the metalloid sequence?

Answer 25

Starts at boron then goes two going down one three times.