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Chemistry Atomic Theory and Periodic Table Flashcards | StudBud
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Chemistry Atomic Theory and Periodic Table
Chemistry Atomic Theory and Periodic Table
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Parts of atom, Chemical Symbol, Families, Bohr Model, Valence Electrons
Flashcards
35 cards
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Practice quiz
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Questions
35
Answers
1
What is the correct
SHORTHAND
OR
NOBLE GAS
CONFIGURATION for Iodine?
[Kr] 5s25d105p5
1s22s22p63s23p64s24d104p65s25d105p5
1s22s22p63s23p64s23d104p65s24d105p5
[Kr] 5s24d105p5
2
Elements of these groups on the periodic table are most resistant to forming compounds?
Group 18
Group 9
Group 1
Group14
3
Where are the protons, neutrons and electrons located?
Protons, Neutrons, and Electrons are in the nucleus.
Protons, Electrons and Neutrons in the orbitals.
Protons and Neutrons in Nucleus. Electrons in the orbitals
Protons and Electrons in Nucleus. Neutrons in the orbitals.
4
Which of the following represents a pair of isotopes?
16O2- and 19F1-
16O2- and 32S2
40K and 40Ca
1H and 3H
5
The nucleus of an atom is
negatively charged and has a high density
negatively charged and has a low density
positively charged and has a high density
positively charged and has a low density
6
Name this neutral element: 1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
3d
10
4p
6
5s
2
4d
10
5p
6
6s
2
4f
14
5d
10
6p
6
7s
1
Radon
Francium
Actinium
Radium
7
Which of the following was a part of Dalton’s atomic theory, but revised b/c of new evidence?
Elements of a compound always combine in thesame mass ratio.
Atoms of diff elements join w/ oneanother in whole # ratios
The number of protons in an atom is its atomicnumber.
Atoms are tiny indivisible particles.
8
Lithium and potassium have similar chemical properties b/c atoms of both elements have the same
Atomic number
Number of valence electrons
Mass number
Number of electron shells
9
Which of the following is a transition metal?
Hydrogen
Nickel
Neon
Magnesium
10
What is the atomic number?
206
+4
124
82
11
How many electrons are in the atom?
86
82
78
4
12
How many neutrons are in the atom?
86
206
82
124
13
How many protons are in the atom?
4
82
206
86
14
I hope I don't "Bohr" you with this question!
Cl
S
F
O
15
Which of the following is a noble gas?
Hydrogen
Chlorine
Boron
Argon
16
Who was the scientist that created the first periodic table?
Mendeleev
Bohr
Moseley
Democritus
17
How many valence electrons do fluorine, chlorine, and bromine have?
9, 17, 35
7
9
17
18
Where are the alkali metals located?
Group 2 or 2A
Group 18 or 8A
Group 17 or 7A
Group 1 or Group 1A
19
The scientist who performed the gold foil experiment was
Dalton
Rutherford
J.J.Thompson
Chadwick
20
What is the mass number?
82
+4
124
206
21
What is the charge of a proton, electron and neutron?
+1, -1, 0
+1, +1, -1
-1, +1, 0
0, +1, -1
22
On the modern Periodic Table, the elements are arranged in order of increasing
atomic number
mass number
atomic mass
oxidation number
23
95.0% sulfur-32, 0.76% sulfur-33, and 4.22% sulfur-34. What is the atomic mass of sulfur?
32.67 amu
32.09 amu
3.05 amu
3066.5 amu
24
Which orbital has a dumbbell shape?
s
p
d
f
25
What is the charge of this atom?
124
82
206
+4
26
Isotope 1: mass # 20 and 25%. Isotope 2: mass # 22, 75%. Calculate average atomic mass.
20.5 amu
42.00 amu
21.0 amu
21.5 amu
27
How many valence electrons does Tellurium have?
6
16
5
52
28
Which neutral element has the following electron configuration: 1s
2
2s
2
2p
6
3s
2
3p
6
4s
2
3d
10
Ytterbium
Krypton
Zinc
Calcium
29
Which orbital has a sphere shape?
p
d
f
s
30
Which of the following is a metalloid or semi-metal?
Silicon
Calcium
Hydrogen
Aluminum
31
Which of the following is a halogen?
Helium
Hydrogen
Chlorine
Carbon
32
Where will a new element be placed on the periodic table if it has the properties of metals?
right of the zigzag line
left of the zigzag line
noneof the above
right-most column of the periodic table
33
All of the atoms of the same element have the same
number of neutrons
number of protons
numberof sub-atomic particles
mass numbers
34
The number of neutrons in the nucleus can be calculated by
adding the mass number to the number of electrons
subtracting the number of protons from the mass number
adding together the number of electrons and protons
subtracting the number of electrons from the # of protons
35
Where are the alkaline earth metals located?
Group 2 or 2A
Group 18 or 8A
Group 17 or 7A
Group 1 or Group 1A
