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Duplicate of Periodic Table Flashcards | StudBud
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Duplicate of Periodic Table
Duplicate of Periodic Table
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Periodic Table review #periodictable #elements #chemistry #atoms #electrons #atomictheory
Flashcards
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Questions
27
Answers
1
The nucleus of an atom is composed of what?
protons only
electrons + protons
protons + neutrons
neutrons + electrons
2
The number 8 represents what?
atomic number
neutron number
mass number
atomic mass
3
The columns on the periodic table are called what?
periods
groups
metals
halogens
4
How many electrons complete the first energy level?
8
2
6
4
5
The elements in group 1 on the periodic table are extremely reactive. These are known as what?
Metalloids
Alkali Metals
Nobel Gases
Transition Metals
6
Carbon has how many electrons?
12
4
3
6
7
How many neutrons does oxygen have?
7
16
8
2
8
Is silicon a nonmetal, metal, or a metalloid?
metal
metalloid
nonmetal
9
What is the name of the atomic model pictured below?
Electron cloud
Rutherford model
Bohr model
Tompson model
10
The atomic number on the periodic table represents what?
number of electrons
weight of atoms
number of neutrons
number of protons
11
An isotope has a different number of what?
neutrons
electrons
protons
12
The carbon isotope, C-14, has how many neutrons?
12
14
6
8
13
The number on the bottom (15.999) represents what?
number of electrons
atomic mass
number of protons
atomic number
14
The rows on the periodic table are called what?
groups
periods
noble gases
alkali metals
15
The most scientifically accurate atomic model is called what?
Plum pudding model
Rutherford model
Electron cloud model
Bohr Model
16
Is Iodine a metal, nonmetal, or metalloid?
metalloid
metal
nonmetal
17
How was the first periodic table organized?
By atomic number
Alphabetically
By number of neutrons
By atomic mass
18
These elements have both metallic and non-metallic properties.
Noble Gases
Halogens
Metalloids
Lanthanides
19
Elements in group 17 on the periodic table have how many electrons on the outer energy level?
7
5
6
17
20
Atomic mass equals what?
protons + neutrons
protons + electrons
electrons + neutrons
protons
21
The dots in an electron dot diagram represent what?
valence protons
all electrons
protons
outer energy level electrons
22
Which scientist created the first periodic table?
J.J. Thomson
Niels Bohr
Henry G. Mosley
Dimitri Mendeleev
23
These tiny particles make up protons and neutrons.
tachyons
nucleons
electrons
quarks
24
Is sodium a metal, nonmetal, or metalloid?
metalloid
nonmetal
metal
25
How many electrons complete the second energy level?
6
8
2
4
26
Nitrogen has how many protons?
14
7
3
1
27
How is the modern periodic table organized?
By chemical symbol
By density
By atomic number
By atomic mass
