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The Atom
Test Description: Parts of the atom
Instructions: Answer all questions to get your test result.
1) The center of the atom is called the _____.
A
neutron
B
nucleus
C
electron cloud
D
circle
2) The _____ and _____ are found in the nucleus.
A
protons, electrons
B
protons, neutrons
C
ions, protons
D
neutrons, electrons
3) _____ have a positive charge.
A
protons
B
electrons
C
neutrons
D
neutrinos
4) _____ have a negative charge.
A
neutrons
B
protons
C
neutrinos
D
electrons
5) The _____ surrounds the nucleus and contains the electrons.
A
atom cloud
B
electron cloud
C
electron orbit
D
iCloud
6) The neutrons have a _____ charge
A
positive
B
neutral/no
C
negative
D
ion
7) The _____ move around and jump from one energy level to another.
A
electrons
B
protons
C
neutrons
D
neutrinos
8) Overtime, the atom has changed
A
from simple to more complex
B
very little
C
from more complex to simple
D
very quickly
9) If an atom has 6 protons, how many electrons does it have?
A
6
B
18
C
2
D
12
10) If an atom has 2 protons and a mass of 4. How many neutrons does it have?
A
8
B
1
C
2
D
4
11) The amount of time it takes for an element to reduce its mass by half is called _____.
A
divided time
B
half-life
12) An element that has the same number of protons, but different number of neutrons.
A
ion
B
isotope
13) If an element has 8 electrons, how many protons does it have?
A
8
B
4
C
1
D
16
14) If an atomic mass is 15.991. What does it round to?
A
20
B
10
C
15
D
16
15) If an element has an atomic number of 10, how many protons does it have?
A
1
B
10
C
20
D
5
16) _____ is when an element gives off energy (radiation).
A
isotope
B
radioactive decay
17) Which of the following is not an example of radioactive decay?
A
Beta
B
Gamma
C
Delta
D
Alpha
*select an answer for all questions
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