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Periodic table, atom review, 2021 Flashcards | StudBud
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Periodic table, atom review, 2021
Periodic table, atom review, 2021
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#Science #Chemistry #Atom #Periodic Table
Flashcards
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Questions
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Answers
1
Which scientist discovered the nucleus using the gold foil experiment?
Goldstein
Rutherford
JJ Thomson
Chadwick
2
How many neutrons are in Kr?
78
114
42
36
3
Group 17 is called...
Halogens
Alkaline Earth Metals
Noble Gases
Alkali Metals
4
Carbon has the atomic number of 6 and the mass number of 12. How many neutrons does it have?
5
6
12
7
5
Noble gasses are unreactive because...
They have a full valence shell
They have 7 electons in their valence shell.
They have one electron in their valence shell.
They don't have a valence shell
6
The least massive sub-atomic particle is....
protons
neutrons
electrons
7
An atom of Carbon has the atomic number of 6 and the mass number of 12. How many electrons does it have?
12
2
6
18
8
Which scientist was the FIRST to know about electrons?
Thomson
Rutherford
Dalton
Chadwick
9
Magnesium is atomic number 12. A magnesium +2 cation will have how many electrons?
2
12
14
10
10
The nucleus of an atom is...
Positive
Neutral
Negative
Only cells have a nucleus…this is a biology question
11
Carbon has the atomic number of 6 and the mass number of 12. How many protons does it have?
18
12
2
6
12
Electrons are...
<p>Positive</p>
<p>Negative</p>
Neutral
13
What is in the nucleus of an atom?
Electrons and Protons
Electons
Protons only
Protons and Neutons
14
Group 2 is called
Halogens
Alkali Metals
Transitions elements
Alkaline Earth Metals
15
Group 1 is called
Halogens
Inert Gases
Alkaline Earth Metals
Alkali Metals
16
Which scientist was the first to discover neutrons?
Thomson
Dalton
Rutherford
Chadwick
17
Protons are....
Negative
Positive
Neutral
18
Neutrons are
Negative
Neutral
Positive
19
Group 18 is called...
Metals
Noble gases
Halogens
Transition elements
20
Metals are found where on the periodic table?
On the right hand side
Are part of the halogens
On the left hand side.
21
Isotopes have...
Have different number of protons and neutrons
Same number of neutrons different number of protons.
Are exactly the same
Same number of protons, different number of neutrons
