Atoms Test

Question 1

What particles are atoms composed of?

Answer 1

Atoms are composed of different combinations of protons, neutrons, and electrons.

Question 2

What charge does a proton give off?

Answer 2

Protons give off a positive charge.

Question 3

What charge does a neutron give off?

Answer 3

Neutrons give off no charge because they are neutral.

Question 4

What charge does an electron give off?

Answer 4

Electrons give off negative charges.

Question 5

Where do the protons and neutrons reside in an atom?

Answer 5

The protons and neutrons reside in an atoms nucleus.

Question 6

Where do electrons reside in an atom?

Answer 6

Electrons are NOT found in the nucleus of an atom. Instead they are found in an atoms orbital.

Question 7

What does the atomic number of an atom represent?

Answer 7

The atomic number represents the number of protons in an atoms nucleus.

Question 8

What does the atomic number of an atom represent?

Answer 8

The atomic number represents the number of protons in an atoms nucleus.

Question 9

What does the atomic mass of an atom represent?

Answer 9

The atoms mass represents the total number of particles in an atoms nucleus.

Question 10

Element Symbol Definition:

Answer 10

1 or 2 letter internationally agreed code for an element.

Question 11

Element name Definition:

Answer 11

An elements common name

Question 12

How do you solve for neutrons?

Answer 12

Take the atomic mass of an element minus the atomic number.

Question 13

Electron Shell Definition

Answer 13

“orbit” followed by electrons around the nucleus of an atom

Question 14

How many electrons can shell #1 hold

Answer 14

Shell Label: K Number of Atoms: 2

Question 15

How many electrons can shell #2 hold?

Answer 15

Shell Label: L Atoms: 8

Question 16

How many electrons can shell #3 hold?

Answer 16

Shell Label: M Amount of Atoms: 18

Question 17

How many electrons can shell #4 hold?

Answer 17

Shell Label: N Amount of Atoms: 32

Question 18

How do you use the atomic number to complete an electron shell diagram?

Answer 18

The atomic number=# of protons=# of electrons. So fill out the number throughout the shells.

Question 19

Periodic Table Definition:

Answer 19

A tabular arrangement of the chemical elements, organized on the basis of their atomic numbers, electron configurations, and recurring chemical properties. Elements are presented in order of increasing the atomic number, (the number of protons in the nucleus.

Question 20

Groups or families on the periodic table definition:

Answer 20

Vertical columns of the periodic table (18 in total)

Elements in the same group have similar characteristics.

Question 21

Periods on a periodic table definition

Answer 21

Horizontal rows of the periodic table (7 in total)

Elements in the sane period do not have similar properties

Question 22

What is a valence electron?

Answer 22

Electrons farthest away from the nucleus of an atoms involved in the formation of chemical bongs
Can range from 1-8

Question 23

Definition of an Electron Dot Diagram

Answer 23

A representation of the number of valence electrons in an atom, using dots placed around the element symbol.
Each dot represents one valence electron

Question 24

How to find a valence electron?

Answer 24

If you make a shell diagram for an element, the outermost shell will tell you how many valence electrons are in it. Or if you know what group the element is in, look at the number in the ones place.