Quiz about Atomic Structure Periodic Table 8th grade Science

Question 1

The atomic number identifies the number of __________.

Accepted Answer

protons and electrons

Answer

electrons and neutrons

Answer

atoms

Answer

neutrons and protons

Question 2

Subatomic particles that have a negative charge

Accepted Answer

electrons

Answer

protons

Answer

quarks

Answer

neutrons

Question 3

The number 16 for the atomic element sulfur is the

Accepted Answer

atomic number

Answer

ionic number

Answer

isotope

Answer

atomic mass

Question 4

How many protons does sulfur have?

Accepted Answer

16

Answer

32

Answer

48

Answer

12

Question 5

How many electrons does sulfur have

Accepted Answer

16

Answer

32

Answer

48

Answer

12

Question 6

Subatomic particle that has a positive charge

Accepted Answer

proton

Answer

electron

Answer

poitron

Answer

neutron

Question 7

The center of an atom is called the ________________.

Accepted Answer

nucleus

Answer

electron cloud

Answer

neutrion

Answer

nuetron

Question 8

In what part of an atom can the protons and neutrons be found?

Accepted Answer

nucleus

Answer

neutrine

Answer

electron cloud

Answer

proton cloud

Question 9

In an atom, the number of protons is equal to the number of ____________.

Accepted Answer

electrons

Answer

energy levels

Answer

neutrons

Answer

neurons

Question 10

Which subatomic particle moves around the nucleus?

Accepted Answer

electrons

Answer

protons

Answer

electrode particles

Answer

neutrons

Question 11

What type of charge does a proton have?

Accepted Answer

positive

Answer

negative

Answer

neutral

Question 12

What charge does an electron have?

Accepted Answer

negative

Answer

positive

Answer

neutral

Question 13

What type of particles are found in the cloud that surrounding the atom's nucleus

Accepted Answer

negative charged particles only

Answer

positively charged particles and negatively charged particles

Answer

neutral charged particles and positively charged particles

Answer

positively charged particles only

Question 14

Which student's responses are correct

Accepted Answer

Student 2

Answer

Student 1

Answer

Student 3

Answer

Student 4

Question 15

An atom of which element is represented by this model?

Accepted Answer

Boron

Answer

Carbon

Answer

Neon

Answer

Sodium

Question 16

A chemist is identifying the elements present in a sample of sea water. What characteristic of an elements atoms always the elements identity?

Accepted Answer

The number of protons

Answer

The number of neutrons

Answer

The location of valence electrons

Answer

The number of valence electrons

Question 17

Which of the following best describes an electron?

Accepted Answer

It has a negative charge and much less mass than a proton.

Answer

It has no charge and about the same mass as a proton.

Answer

It has a positive charge and much more mass than a neutron.

Answer

It has a negative charge and about the same mass as a neutron.

Question 18

What is the mass number of Potassium (K) atom that has 20 neutrons?

Accepted Answer

39

Answer

18

Answer

19

Answer

20

Question 19

What element in group 18 only has 2 valence electrons?

Accepted Answer

Helium

Answer

Argon

Answer

Neon

Answer

Gold

Question 20

Define Luster

Accepted Answer

shiny, can reflect light

Answer

easily broken

Answer

can be hammered into thin sheets

Answer

can be drawn into wire

Question 21

Define ductile

Accepted Answer

can be drawn into wire

Answer

easily broken

Answer

shiny, can reflect light

Answer

can be hammered into thin sheets

Question 22

Define brittle

Accepted Answer

can be easily broken

Answer

shiny, can reflect light

Answer

can be hammered into thin sheets

Answer

can be drawn into wire

Question 23

Define malleable

Accepted Answer

can be hammered into thin sheets

Answer

can be easily broken

Answer

shiny, can reflect light

Answer

can be drawn into wire

Question 24

Which element is found in Group 5, Period 4?

Accepted Answer

Vanadium

Answer

Lithium

Answer

Zirconium

Answer

Potassium

Question 25

The modern Periodic Table of Elements arranges elements in order of

Accepted Answer

Increasing atomic number

Answer

Increasing atomic charge

Answer

Decreasing atomic mass

Answer

Decreasing atomic charge

Question 26

Which sequence of elements occurs as the atomic number increases across Period 3 of the periodic table?

Accepted Answer

metal, metalloid, nonmetal

Answer

metal, nonmetal, metalloid

Answer

nonmetal, metalloid, metal

Answer

nonmetal, metal, metalloid

Question 27

What is the property of most nonmetals?

Accepted Answer

Does not conduct electricity

Answer

Does conduct electricity

Answer

Shiny and malleable in solid state

Answer

Low specific heat

Question 28

Which of the following is a nonmetal?

Accepted Answer

Flourine (F)

Answer

Magnesium (Mg)

Answer

Calcium (Ca)

Answer

Sodium (Na)

Question 29

These elements highlighted in the periodic table shown below can be described as

Accepted Answer

metalloids

Answer

metals

Answer

nonmetals

Answer

radioactive elements

Question 30

Which of the following elements is a metal?

Accepted Answer

Sodium (Na)

Answer

Flourine (F)

Answer

Silicon (Si)

Answer

Chlorine (Cl)

Question 31

A student is implementing an investigation of physical properties using samples of metals, nonmetals, and metalloids. She uses a battery, wires, and a bulb to test if each of the samples will complete the circuit causing the bulb to light. Next, she shines a bright light on each of the samples. Which physical properties is the student investigating?

Accepted Answer

Luster and conductivity

Answer

Streak and hardness

Answer

Color and conductivity

Answer

Hardness and luster

Question 32

Which of the following elements is malleable?

Accepted Answer

Iron

Answer

Hydrogen

Answer

Carbon

Answer

Sulfur

Question 33

Which of the following elements is a metalloid?

Accepted Answer

Silicon

Answer

Sulfur

Answer

Iron

Answer

Copper

Question 34

The periodic table is a system used to classify

Accepted Answer

Elements

Answer

Ions

Answer

Metals

Answer

Solids

Question 35

Which element has a mass number greater than nitrogen, but less than neon?

Accepted Answer

Oxygen

Answer

Lithium

Answer

Helium

Answer

Sodium

Question 36

The elements Potassium, Vanadium, Manganese and Calcium are examples of

Accepted Answer

Members of a period

Answer

Members of a family

Answer

Molecules

Answer

Gases

Question 37

The horizontal rows of elements are called

Accepted Answer

Periods

Answer

Groups

Answer

Families

Answer

Kingdoms

Question 38

A student is asked to identify an element that is pale-yellow brittle solid and does not conduct electricity. At what location would the element most likely be found?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 39

Some students conducted a laboratory investigation to learn more about the physical properties of different elements. They observed four samples and recorded their observations in the table below.

Based on these observations, which sample is most likely a nonmetal?

Accepted Answer

Sample1

Answer

Sample 2

Answer

Sample 3

Answer

Sample 4

Question 40

An element has a metallic gray appearance. It also has the properties of both a metal and a nonmetal. In which section of the periodic table indicated below would the element most likely be found?

Accepted Answer

Section 3

Answer

Section 1

Answer

Section 2

Answer

Section 4

Question 41

An atom of Lithium has 3 protons, 3 electrons, and 4 neutrons. What is the atomic mass?

Accepted Answer

7

Answer

3

Answer

6

Answer

10

Question 42

What subatomic particles identifies the actual identity of the element

Accepted Answer

protons

Answer

neutrons

Answer

electrons

Answer

valence electrons

Question 43

What identifies the reactivity and chemical properties of an atom?

Accepted Answer

valence electrons

Answer

neutrons

Answer

protons

Answer

electrons

Question 44

Which of the following would change the name of the element if one was added or removed from the atom?

Accepted Answer

protons

Answer

neutrons

Answer

electrons

Answer

valence electrons

Question 45

Why is group 1 highly reactive?

Accepted Answer

It has 1 valence electrons

Answer

It has the most energy levels

Answer

It has the same number of protons

Answer

It has the same number of electrons

Question 46

Elements in the same ____________ have similar chemical properties

Accepted Answer

Group

Answer

Period

Answer

Staircase

Answer

Row

Question 47

The group number equals?

Accepted Answer

The number of valence electrons

Answer

The number of energy levels

Answer

The number of protons

Answer

The number of neutrons

Question 48

An elements in group 18 are non reactive, stable, and inert because

Accepted Answer

they have 8 valence electrons and a full outer shell

Answer

they have 3 valence electrons and a full outer shell

Answer

they have no valence electrons and a full outer shell

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