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