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Electrons and the Periodic Table Flashcards | StudBud
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Electrons and the Periodic Table
Electrons and the Periodic Table
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Periodic Table review #periodictable #elements #chemistry #atoms #electrons #atomictheory
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Questions
27
Answers
1
How many electrons complete the first energy level?
4
2
6
8
2
Carbon has how many electrons?
3
4
6
12
3
What type of orbital is in the picture?
s
f
d
p
4
The number 8 represents what?
atomic number
atomic mass
mass number
neutron number
5
Which scientist created the first periodic table?
Dimitri Mendeleev
Niels Bohr
Henry G. Mosley
J.J. Thomson
6
The most scientifically accurate atomic model is called what?
Rutherford model
Electron cloud model
Bohr Model
Plum pudding model
7
The vertical columns on the periodic table are called what?
halogens
metals
groups
periods
8
Is sodium a metal, nonmetal, or metalloid?
metal
metalloid
nonmetal
9
Is Iodine a metal, nonmetal, or metalloid?
metalloid
nonmetal
metal
10
What periods of the periodic table have only s and p orbitals?
1-3
4-7
1-2
1-4
11
The atomic number on the periodic table represents what?
weight of atoms
number of protons
number of electrons
number of neutrons
12
These elements have both metallic and non-metallic properties.
Halogens
Noble Gases
Metalloids
Lanthanides
13
Atomic mass equals what?
protons
protons + neutrons
protons + electrons
electrons + neutrons
14
What type of orbital is in the picture?
d
s
f
p
15
Is uranium a metal, nonmetal, or metalloid?
metalloid
metal
nonmetal
16
According to Hunds rule
an orbital may only have two electrons
electrons occupy lowest energy levels first.
one electron enters an orbital at a time
the 3rd shell of an atom has 8 electrons
17
What is the name of the atomic model pictured below?
Bohr model
Tompson model
Rutherford model
Electron cloud
18
How is the modern periodic table organized?
By chemical symbol
By density
By atomic mass
By atomic number
19
How was the first periodic table organized?
By number of neutrons
Alphabetically
By atomic number
By atomic mass
20
The metals that we are most familiar with are called the -
Alkali Metals
Actinides
Transition Metals
Alkaline Earth Metals
21
The horizontal rows on the periodic table are called what?
periods
groups
alkali metals
noble gases
22
Is silicon a nonmetal, metal, or a metalloid?
nonmetal
metal
metalloid
23
The number on the bottom (15.999) represents what?
number of protons
number of electrons
atomic number
atomic mass
24
The elements in group 1 on the periodic table are extremely reactive. These are known as what?
Metalloids
Transition Metals
Alkali Metals
Nobel Gases
25
According to the Aufbau principle
electrons occupy orbitals of lowest energy first
an orbital may only hold 2 electrons
one electron enters each orbital at a time.
electrons fill shells of the f orbitals first
26
The nucleus of an atom is composed of what?
protons + neutrons
electrons + protons
neutrons + electrons
protons only
27
How many neutrons does oxygen have?
7
8
16
2
