Atomic Structure and Periodic Table

Question 1

Which of the following represents Lithium?

Accepted Answer

3 protons, 4 neutrons and 3 electrons.

Question 2

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

Accepted Answer

metals - non-metals - metalloids

Question 3

What tells you how many electrons are in a neutral atom of an element?

Accepted Answer

Atomic number

Question 4

The subatomic particles which contribute to the majority of the mass of an atom are the...

Accepted Answer

Protons and Neutrons

Question 5

Which of the following represents Magnesium?

Accepted Answer

12 protons, 12 neutrons and 12 electrons.

Question 6

What is the only element found to the left of the zigzag line that is NOT a metal:

Accepted Answer

Hydrogen (H)

Question 7

How do we calculate the number of neutrons in an element?

Accepted Answer

Atomic mass - Atomic number

Question 8

On the periodic table, what is used to help distinguish between the metals and nonmetals?

Accepted Answer

a zigzag line

Question 9

How many periods are there in the periodic table?

Accepted Answer

7

Question 10

Most elements on the periodic table are classified as __________.

Accepted Answer

Metals

Question 11

The total number of ______________ is equal to the atomic mass?

Accepted Answer

protons and neutrons

Question 12

How many neutrons are there in Phosphorus?

Accepted Answer

16

Question 13

The number of protons found in the nucleus of an atom is known as the _________.

Accepted Answer

atomic number

Question 14

Which group are known as the noble gases?

Accepted Answer

18

Question 15

Which metal is in the fourth period and the same group as Beryllium (Be)?

Accepted Answer

Calcium (Ca)

Question 16

Which of the following are metalloids?

Accepted Answer

Si

Question 17

Which metalloid is in the fourth period and the same group as Carbon?

Accepted Answer

Germanium

Question 18

The central part of an atom is called...

Accepted Answer

Nucleus

Questions 18