Science Review

Question 0

What are some chemical properties of metals?

Answer 0

Reactivity.

Question 1

What are some physical properties of metals?

Answer 1

They are shiny, malleable, ductile, and good conductors of electricity.

Question 2

What are the names of the groups on the periodic table?

Answer 2

Alkali, Alkali Earth Metals, Transition Metals, Boron, Carbon, Nitrogen, Halogens, and Noble Gases.

Question 3

How many electrons do Alkali metals give up when reacting with other elements?

Answer 3

1

Question 4

How many electrons do Alkali Earth metals give up when reacting other elements?

Answer 4

2

Question 5

What are the physical properties of nonmetals?

Answer 5

Ten of the sixteen nonmetals are gases at room temperature. They are poor conductors of electricity and heat, reactive with other elements and are brittle and dull.

Question 6

What are some chemical properties of nonmetals?

Answer 6

They are very reactive and readily form compounds.

Question 7

How many electrons does the Carbon family lose, gain, or shre when reacting with other elements?

Answer 7

4 electrons.

Question 8

How many electrons can the Nitrogen family gain, lose, or shre when reacting with other elements?

Answer 8

3 electrons.

Question 9

How many electrons can the Oxygen family gain, lose, or share when reacting with other elements?

Answer 9

2 electrons.

Question 10

How many electrons can the Halogen family gain, lose, or shre when combining with other elements?

Answer 10

1 electron, they a very reactive.

Question 11

How many electrons can the Noble Gases gain, lose, or shre when combining with other elements?

Answer 11

NONE! They do NOT form compounds and are UNREACTIVE! they do not share

Question 12

What are some characteristics about metalloids?

Answer 12

Solid at room temperature, they are brittle, hard, and somewhat reactive.

Question 13

What is most useful about metalloids?

Answer 13

They are excellent conductors of electricity.

Question 14

What is semiconductor?

Answer 14

A substance that can conduct electricity under some conditions but not under others.

Question 15

How do you count on the periodic table how many electron orbitals each period has?

Answer 15

You start at the top with hydrogen and helium, they have one energy level. Then you down a period, they have two and so forth.

Question 16

How can you count on the periodic table how many valence electrons each family has on their outer shell?

Answer 16

The elements in a group or family have the same number of electrons in their outer orbital.