Chemistry-Peridioc Table

Question 1

What are the 4 main parts of an atom

Answer 1

• Nucleus
• Protons
• Electrons
• Neutrons

Question 2

Define

Nucleus

Answer 2

The nucleus is the central part of an atom. It contains protons and neutrons.

Question 3

Define

Protons

Answer 3

Protons are positively charged particles found in the nucleus. Each proton has a charge of +1.

Question 4

Define

Electrons

Answer 4

Electrons are negatively charged particles that orbit the nucleus. They determine the atom’s chemical properties and participate in bonding.

Question 5

Define

Neutrons

Answer 5

Neutrons are uncharged particles also found in the nucleus. They help stabilize the nucleus by balancing the repulsive forces between protons.

Question 6

Define

Atomic Mass

Answer 6

How heavy one singular atom of the element is

Question 7

Equation

Atomic Mass

Answer 7

Protons+Neutrons

Question 8

Define

Atomic Number

Answer 8

A number that determines an element place on the periodic table

Question 9

Equation

Atomic number

Answer 9

Number of protons

Question 10

Difference

• Group
• Period

Answer 10

• Group:Colum
• Period:Row

Question 11

How many elements are in the peridioc table

Answer 11

118

Question 12

How many groups are in the peridioc table

Answer 12

18

Question 13

How many periods are in the peridioc table

Answer 13

7

Question 14

Group 1

Name

Answer 14

Alkail Metals

Question 15

Group 1

• Most reactive
• Least reactive

Answer 15

• Francuim
• Lithuim

Question 16

Group 7

Name

Answer 16

Halogeon

Question 17

Group 1

• Most reactive
• Least reactive

Answer 17

• Francuim
• Lithuim

Question 18

Group 0

Name

Answer 18

Noble Gases

Question 19

Group 0

• Most reactive
• Least reactive

Answer 19

• Xenon
• Heilium