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Level 10 Cinnabar Island
Level 10 Cinnabar Island
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Atomic Theory, Atoms, & Atomic Structure
Flashcards
32 cards
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Practice quiz
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Questions
32
Answers
1
Neutral atom or ion?
Neutral atom
Ion
2
How many protons are in the nucleus of an atom of sodium, Na?
12
23
10
11
3
Neils Bohr contributed to Atomic Theory by
halloween is the best holiday EVER!
electrons had a negative charge
There are not subatomic particles
electrons travel in pathways or orbitals
4
Hydrogen has 3 isotopes:
1
H
2
H
3
H. How many neutrons in each?
0,1,2
2,0,1
2,1,0
0,2,1
5
James Chadwick discovered the
Electron
Neutron
Proton
An Apple
6
A Ca
2+
ion differs from a Ca atom in that the Ca
2+
ion has
fewer electrons
More neutrons
more electrons
more protons
7
What's the net charge for this atom?
-1
+2
+1
0
8
Which subatomic particle has no charge?
Proton
Electron
Neutron
Ion
9
Which subatomic particle has a negative charge?
Ion
Proton
Electron
Neutron
10
According to atomic theory, electrons are usually found:
Outside the nucleus
In the nucleus
11
How many electrons would the ion Mg+2 have?
13
12
11
10
12
A negative ion has.....
more electrons than protons
more protons than electrons
more electrons than neutrons
less electrons than neutrons
13
Is this correct?
Yes
No
14
An atom with a neutral charge has the same number of...
neutrons and electrons
protons and neutrons
protons and electrons
15
Define isotope.
Atoms with different # of electrons and protons.
Atoms with different # neutrons but same # electrons.
Atoms with same # of protons but different # of neutrons
16
What is the AMU of protons, neutron, and electrons respectively?
1,0,0
1,1,0
1,1,1
0,1,1
17
Atoms of
16
O,
17
O, and
18
O have the same number of
electrons, but a different number of protons
protons, but a different number of neutrons
neutrons, but a different number of protons
protons, but a different number of electrons
18
A positive ion has...
more electrons than neutrons
more protons than electrons
less protons than electrons
less electrons than neutrons
19
Which element has 14 neutrons?
Si
Ne
N
Br
20
Which subatomic particle has a positive charge?
proton
neutron
ion
electron
21
JJ Thomson proposed that negative electrons were
floating around the nucleus
all different shapes and sizes
held in a positively charged pudding like substance
orbiting the nucleus in energy shells
22
Fill in the missing box.
24
12
22
10
23
How many protons, neutrons, and electrons are in this atom?
10,10,8
8,10,8
8,10,10
10,8,8
24
How many neutrons are in this atom?
12
26
0
14
25
John Dalton believed that...
Atoms are spheres with different masses and sizes
Atoms can be seen through microscope
Atoms have positive and negative particles
Atoms can be divided into smaller parts
26
What did Erwin Schrodinger do help with the Atom?
Discovered the Protons.
None of the Above.
He developed the Electron Cloud Model.
Made the Bohr Model.
27
What did Ernest Rutherford discover about atoms?
That atoms have positively charged particles floating about
That alpha particles cannot pass through atoms
That they have a positively charged nucleus
That they are not mostly empty space
28
What's the mass number, atomic number, and net charge?
36, 18,-1
35,17,+1
36,18,+1
35, 17, -1
29
Name the element.
Beryllium
Helium
Lithium
Hydrogen
30
What's the mass number, atomic number, and net charge
12,6,6
6,6,12
6,6,6
12,6,0
31
What's the mass number for this atom?
18
10
15
8
32
Name the element
Nitrogen
Neon
Flourine
Oxygen
