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Atomic Theory Quizizz

Total questions: 40

Worksheet time: 40mins

Name
Class
Date
1.

Which scientist discovered the nucleus of the atom with his Gold Foil experiment?

a)

Democritus

b)

Thomson

c)

Dalton

d)

Rutherford

2.

Who first proposed that matter is made of uncuttable/indivisible particles he called "atomos"

a)

Democritus

b)

Dalton

c)

Rutherford

d)

Thomson

3.

This scientist's "Plum Pudding" model of the atom proposed that electrons were dispersed in a positively charged matrix.

a)

Rutherford

b)

Democritus

c)

Thomson

d)

Dalton

4.

This subatomic particle identifies the element.

a)

proton

b)

neutron

c)

electrons

d)

neutrino

5.

This subatomic particle determines the chemical properties of element (i.e. how it reacts, bonds, whether it forms an ion)

a)

proton

b)

neutron

c)

electron

d)

quark

6.

What is the atomic number of potassium (K)?

a)

39.10

b)

39

c)

15

d)

19

e)

31

7.

Subatomic particle with no mass.

a)

proton

b)

neutron

c)

electron

8.

Element A:  10 protons, 10 electrons, 12 neutrons
Element B:  11 protons, 11 electrons, 11 neutrons
Element C:  10 protons, 10 electrons, 11 neutrons 
Element D:  12 protons, 11 electrons, 11 neutrons

Which of the above are isotopes of one another?

a)

A & B

b)

B & C

c)

A & C

d)

B, C, & D

e)

C & D

9.

When a neutral atom gains or loses electrons, it becomes ____

a)

an ion

b)

an isotope

c)

a nucleus

d)

a new element

e)

radioactive

10.

How many protons are in cadmium-112

a)

112

b)

64

c)

48

d)

27

11.

How many neutrons are in cadmium-112

a)

112

b)

48

c)

64

d)

27

12.

What is the correct isotope name?

47 protons, 61 neutrons, 47 electrons

a)

silver - 108

b)

promethium - 108

c)

silver - 41

d)

hassium - 108

e)

silver - 94

13.

Which of the following are cations?

a)

Mg2+

b)

S2-

c)

Ca

d)

Ca2+

e)

Cu+

14.

Beryllium-10 and Boron-10 have the same _____

a)

number of protons

b)

mass number

c)

electron number

d)

atomic number

15.

Element X is found to have two naturally occuring isotopes: X - 35 and X - 36. A sample of element X contains 92.5% X-36 and 7.5% X-35. What is the average atomic mass?

a)

37.8 amu

b)

59.6 amu

c)

35.9 amu

d)

34.9 amu

16.

Which of the following has 5 valence electrons?

a)

boron (B)

b)

arsenic (As)

c)

neon (Ne)

d)

magnesium (Mg)

e)

sodium (Na)

17.

How many valence electrons are in a neutral chlorine (Cl) atom?

a)

1

b)

17

c)

35

d)

8

e)

7

18.

Which of the following is LEAST likely to bond or react due to a full valence shell?

a)

Argon (Ar)

b)

Phosphorus (P)

c)

Technetium (Tc)

d)

Barium (Ba)

19.

Which of the following shows an ion that formed when it lost 3 electrons?

a)

N-3

b)

Al+3

c)

Li+1

d)

Kr

20.

Which types of elements tend to lose electrons and form cations?

a)

nonmetals

b)

halogens

c)

noble gases

d)

metals

21.

What type of model is this?

a)

Bohr Model

b)

Lewis Structure

c)

Plum Pudding Model

d)

Atomos Model

22.

What element is represented?

a)

Sodium

b)

Titanium

c)

Argon

d)

Tin

23.

Calcium will most likley form which ion?

a)

Ca2-

b)

Ca2+

c)

Ca1+

d)

Ca-1

e)

Ca3+

24.

Oxygen will most likely form which ion?

a)

O2+

b)

O1-

c)

O2-

d)

O6-

25.

30 protons, 36 neutrons, 28 electrons

a)

36Ni 2+

b)

66Ni2+

c)

66Zn

d)

66Zn2+

26.

How many total electrons are in P3-?

a)

18

b)

15

c)

5

d)

3

e)

10

27.

Which of these have 4 valence electrons?

a)

beryllium

b)

nitrogen

c)

carbon

d)

neon

28.

Bromine is most likely to form what charge when it forms an ion?

a)

-1

b)

+1

c)

-7

d)

+7

e)

+2

29.

What types of elements are most likely to be radioactive?

a)

more massive atoms that have crowded, unstable nuclei

b)

elements in the first 2 rows of the periodic table

c)

elements with fewer than 40 protons in the nucleus

d)

elements that form anions

30.

Which of the following describes alpha radiation?

a)

the same as a helium nucleus; can be stopped by paper or skin

b)

the same as an electron; can penetrate skin but can be stopped by high density plastics or lead

c)

high energy radiation with no mass or charge

d)

the most damaging type of radiation

31.

238U --> 234Th + ???

a)

0-1β

b)

42α

c)

00γ

d)

P+

32.

232Th --> 232Pa + ???

a)

0-1β

b)

00γ

c)

42He

d)

P+

33.

Which of the following types of nuclear radiation has the highest energy and is most damaging to human tissues?

a)

alpha

b)

beta

c)

gamma

d)

helium

34.

What is the best explanation for why sulfur forms a -2 ion?

a)

sulfur is more stable if it can give away some of its protons

b)

sulfur is more stable is more stable if it gains 2 electrons and has a full valence shell

c)

sulfur is less stable if it gains electrons

d)

sulfur is most stable when it can form a cation

35.

Why do the alkali metals (e.g. Na, Li, K) tend to form a +1 ion?

a)

alkali metals do not form a +1 ion

b)

if they lose their outer valence electron they will have a full valence shell

c)

if they gain one more eletron they will have a full valence shell

d)

alkali metals are untable when they form ions

36.

What types of ions do magnesium, calcium, and beryllium form?

a)

+1

b)

-1

c)

+2

d)

-2

e)

+3

37.

Carbon-12 and Carbon - 13 are isotopes of each other because...

a)

they have the same number of neutrons but different numbers of protons

b)

they have the same number of protons but different numbers of electrons

c)

they have the same number of protons but different numbers of neutrons

d)

they have the same number of neutrons but different numbers of electrons

38.

a neutral atom with atomic # 33 and mass # 75 has ...

a)

33 protons, 33 neutrons

b)

75 protons, 75 neutrons

c)

33 protons, 75 neutrons

d)

33 protons, 42 neutrons

39.

The periodic table of elements is arranged by increasing ...

a)

atomic number

b)

mass number

c)

reactivity

d)

neutrons

40.

Using the average atomic mass on the periodic table, which of the following nitrogen isotopes do you think is most abundant?

a)

nitrogen - 13

b)

nitrogen - 15

c)

nitrogen - 14

d)

nitrogen - 12

e)

nitrogen-17