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Atomic Theory and Periodic Table Flashcards | StudBud
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Atomic Theory and Periodic Table
Atomic Theory and Periodic Table
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BASIC info on periodic table and atomic theory
Flashcards
26 cards
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Practice quiz
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Questions
26
Answers
1
Number of neutrons is:
Always = to Atomic Number
Always = to protons
Atomic Mass - # of protons
Atomic mass - # of electrons
2
Iodine, I atomic number?
126.9
129.6
54
53
3
What group is Alkaline Earth Metals?
Group 2
Group 1
Group 3
Group 4
4
The highlighted group?
Alkali Metals
Alkaline Earth Metals
Noble Gases
Halogens
5
Who came up with the first atomic theory?
Mendeleev
Democritus
Rutherford
Dalton
6
Elements on the periodic table have a different number of protons.
False
True
7
Who discovered the nucleus of an atom?
Rutherford
Moseley
Dalton
Mendeleev
8
An isotope is:
An atom of the same element with different # of protons
An atom of the same element with different # of neutrons
An average of all of the naturally occurring neutrons
none of the above
9
The verticle columns on the PT are called
rows
groups
families
periods
10
Mosely was known for ____________.
law of conservation of mass
his cat experiment
placing elements on the pt in order of atomic number
finding radiation accidentally
11
Bohr grouped the elements by their atomic number.
True
False
12
Atomic number is
same as number of protons
same as number of electrons
equal to the atomic mass
same as number of neutrons
13
Which has all the Noble Gases
Li,Na,K,Rb,Cs,Fr
He,Ne,Ar,Kr,Xe,Rn
I don't know
B,C,N,O,F,Ne
14
What did Ernest Rutherford discover about atoms?
That they are not mostly empty space
That they have a positively charged nucleus
That alpha particles cannot pass through atoms
That atoms have positively charged particles floating about
15
highlighted group
Halogens
Alkaline Earth Metals
Noble Gases
Alkali Metals
16
Groups 3-12 on the PT are called the
Noble gases
Alkaline earth metals
Metalloid Family
transition metals
17
To the right of the stairstep is the:
metals
halogens
nonmetals
none of the answers
18
How was Dimitri Mendeleev arranging the elements?
Arbitraruly
Alphabetically
by type of element
By atomic mass
19
Te is a
Transition Metal
Alkali Metal
Halogen
Metalloid
20
Dmitri Mendeleev created the first version of the period table.
True
False
21
There are 18 periods on the periodic table.
False
True
22
Which element would have properties similar to those of beryllium, Be?
Li
Mg
B
Na
23
The unit charge of a proton is _______, an electron is _______, and neutron is _______.
positive, neutral, negative
Positive, positive, negative
Negative, Negative, Negative
positive, negative, neutral
24
Along the stairstep you find:
Non Metals
Halogens
Metals
Metalloids
25
Iodine, I, average atomic mass?
35
53
129.6
126.9
26
Atomic Number 16
Copper
Carbon
Sulfur
Oxygen
