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WorksheetsAtomic Theory Quizizz
Total questions: 40
Worksheet time: 40mins
Which scientist discovered the nucleus of the atom with his Gold Foil experiment?
Democritus
Thomson
Dalton
Rutherford
Who first proposed that matter is made of uncuttable/indivisible particles he called "atomos"
Democritus
Dalton
Rutherford
Thomson
This scientist's "Plum Pudding" model of the atom proposed that electrons were dispersed in a positively charged matrix.
Rutherford
Democritus
Thomson
Dalton
This subatomic particle identifies the element.
proton
neutron
electrons
neutrino
This subatomic particle determines the chemical properties of element (i.e. how it reacts, bonds, whether it forms an ion)
proton
neutron
electron
quark
What is the atomic number of potassium (K)?
39.10
39
15
19
31
Subatomic particle with no mass.
proton
neutron
electron
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 & B
B & C
A & C
B, C, & D
C & D
When a neutral atom gains or loses electrons, it becomes ____
an ion
an isotope
a nucleus
a new element
radioactive
How many protons are in cadmium-112
112
64
48
27
How many neutrons are in cadmium-112
112
48
64
27
What is the correct isotope name?
47 protons, 61 neutrons, 47 electrons
silver - 108
promethium - 108
silver - 41
hassium - 108
silver - 94
Which of the following are cations?
Mg2+
S2-
Ca
Ca2+
Cu+
Beryllium-10 and Boron-10 have the same _____
number of protons
mass number
electron number
atomic number
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?
37.8 amu
59.6 amu
35.9 amu
34.9 amu
Which of the following has 5 valence electrons?
boron (B)
arsenic (As)
neon (Ne)
magnesium (Mg)
sodium (Na)
How many valence electrons are in a neutral chlorine (Cl) atom?
1
17
35
8
7
Which of the following is LEAST likely to bond or react due to a full valence shell?
Argon (Ar)
Phosphorus (P)
Technetium (Tc)
Barium (Ba)
Which of the following shows an ion that formed when it lost 3 electrons?
N-3
Al+3
Li+1
Kr
Which types of elements tend to lose electrons and form cations?
nonmetals
halogens
noble gases
metals
What type of model is this?
Bohr Model
Lewis Structure
Plum Pudding Model
Atomos Model
What element is represented?
Sodium
Titanium
Argon
Tin
Calcium will most likley form which ion?
Ca2-
Ca2+
Ca1+
Ca-1
Ca3+
Oxygen will most likely form which ion?
O2+
O1-
O2-
O6-
30 protons, 36 neutrons, 28 electrons
36Ni 2+
66Ni2+
66Zn
66Zn2+
How many total electrons are in P3-?
18
15
5
3
10
Which of these have 4 valence electrons?
beryllium
nitrogen
carbon
neon
Bromine is most likely to form what charge when it forms an ion?
-1
+1
-7
+7
+2
What types of elements are most likely to be radioactive?
more massive atoms that have crowded, unstable nuclei
elements in the first 2 rows of the periodic table
elements with fewer than 40 protons in the nucleus
elements that form anions
Which of the following describes alpha radiation?
the same as a helium nucleus; can be stopped by paper or skin
the same as an electron; can penetrate skin but can be stopped by high density plastics or lead
high energy radiation with no mass or charge
the most damaging type of radiation
238U --> 234Th + ???
0-1β
42α
00γ
P+
232Th --> 232Pa + ???
0-1β
00γ
42He
P+
Which of the following types of nuclear radiation has the highest energy and is most damaging to human tissues?
alpha
beta
gamma
helium
What is the best explanation for why sulfur forms a -2 ion?
sulfur is more stable if it can give away some of its protons
sulfur is more stable is more stable if it gains 2 electrons and has a full valence shell
sulfur is less stable if it gains electrons
sulfur is most stable when it can form a cation
Why do the alkali metals (e.g. Na, Li, K) tend to form a +1 ion?
alkali metals do not form a +1 ion
if they lose their outer valence electron they will have a full valence shell
if they gain one more eletron they will have a full valence shell
alkali metals are untable when they form ions
What types of ions do magnesium, calcium, and beryllium form?
+1
-1
+2
-2
+3
Carbon-12 and Carbon - 13 are isotopes of each other because...
they have the same number of neutrons but different numbers of protons
they have the same number of protons but different numbers of electrons
they have the same number of protons but different numbers of neutrons
they have the same number of neutrons but different numbers of electrons
a neutral atom with atomic # 33 and mass # 75 has ...
33 protons, 33 neutrons
75 protons, 75 neutrons
33 protons, 75 neutrons
33 protons, 42 neutrons
The periodic table of elements is arranged by increasing ...
atomic number
mass number
reactivity
neutrons
Using the average atomic mass on the periodic table, which of the following nitrogen isotopes do you think is most abundant?
nitrogen - 13
nitrogen - 15
nitrogen - 14
nitrogen - 12
nitrogen-17
