Atomic Structure And The Periodic Table

Question 0

What does the nucleus contain?

Answer 0

Protons and neutrons

Question 1

Where is the nucleus of an atom found?

Answer 1

In the middle of the atom

Question 2

What charge does the nucleus have?

Answer 2

Positive, because protons are positively charged and neutrons are neutral

Question 3

Where is most of the mass of an atom found?

Answer 3

In the nucleus

Question 4

What is the relative charge of an electron?

Answer 4

Negative 1

Question 5

What is the relative mass of an electron?

Answer 5

1/2000

Question 6

Where are electrons found in the atom?

Answer 6

In shells around the nucleus

Question 7

What is the relative charge of a neutron?

Answer 7

0

Question 8

What is the charge of an atom?

Answer 8

0, because they have the same number of electrons and protons

Question 9

What is the relative charge of a proton?

Answer 9

Positive 1

Question 10

What is the mass of a proton?

Answer 10

1

Question 11

Which energy levels are always filled first in an atom?

Answer 11

The lowest, the ones closest to the nucleus

Question 12

What is the electron configuration rule?

Answer 12

2.8.8.2

Question 13

What make an atom reactive?

Answer 13

When the atom doesn’t have a full outer shell

Question 14

What decides what element an atom is?

Answer 14

The number of protons

Question 15

What is the atomic number?

Answer 15

The number of protons in an atom?

Question 16

What is the relative atomic mass?

Answer 16

The average mass of the atoms of an element (takes into account isotopes) relative to Carbon 12

Question 17

What is the mass number of an atom?

Answer 17

The number of protons and neutrons added together

Question 18

What is an isotope?

Answer 18

Isotopes are different atomic forms of the same element, which have the same number of protons but different numbers of neutrons

Question 19

What is relative abundance?

Answer 19

How much there is of each isotope compared to the total amount of the element in the world

Question 20

How were elements ordered in the 1800s?

Answer 20

In order of their relative atomic mass

Question 21

Who originally created the periodic table?

Answer 21

Dmitri Mendeleev

Question 22

How was Mendeleev’s table of the elements ordered?

Answer 22

According to their properties and the properties of their compounds

Question 23

Which side of the periodic table are the metals?

Answer 23

The metals are on the left hand side

Question 24

How is the periodic table arranged?

Answer 24

In periods and groups

Question 25

What are the rows of the periodic table called?

Answer 25

Periods

Question 26

How are the elements arranged in each period?

Answer 26

They are arranged in order of increasing atomic number

Question 27

What does the period number represent?

Answer 27

The number of electron shells

Question 28

What are the columns of the periodic table called?

Answer 28

Groups

Question 29

What do elements in each group have in common?

Answer 29

They have similar properties because they have the same number of electrons in their outer shell

Question 30

What is the group number the same as?

Answer 30

The number is always equal to the number of electrons in the outer shell