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Atomic Structure and The Big Bang Flashcards | StudBud
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Atomic Structure and The Big Bang
Atomic mass is:
Protons are:
Atomic Structure and The Big Bang
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1
Protons are:
positively charged
have a mass of 1amu
in the nucleus
negatively charged
2
Atomic mass is:
neutrons + electrons
protons + neutrons
electrons + electrons
protons + electrons
3
How were elements made by The Big Bang?
it was so cold, nothing happened
it was so hot, nuclear fusion occurred and made elements
it was so hot, fission occurred and made elements
4
What does The Big Bang Theory explain?
the origin of the universe
the universe began as a single, dense point called a singularity
why our universe is expanding
why our universe is shrinking
5
What is cosmic microwave background radiation?
evidence for The Big Bang Theory
leftover heat from The Big Bang
how you cook food in your kitchen
6
What are the most abundant elements in the universe?
helium and holmium
hydrogen and holmium
helium and lithium
hydrogen and helium
7
What's the main piece of evidence that supports The Big Bang?
the universe is shrinking
the universe is expanding
the universe is heating up
the universe is staying the same
8
Atomic number is equal to:
# of protons + neutrons
# of quarks
# of neutrons
# of protons
9
What does red-shifted light tell us about the universe?
it's heating
it's shrinking
it's expanding
it's cooling
10
What isotope has 6 protons and 8 neutrons?
Carbon-12
Oxygen-14
Carbon-14
Oxygen-12
11
True or False: We can't know where electrons really are because they're moving so fast.
True
False
12
An atom with 15 protons, 16 neutrons, and 15 electrons is:
Oxygen (O)
Sulfur (S)
Phosphorus (P)
Nitrogen (N)
13
Which element has the atomic number 60?
Niobium
Nickel
Nitrogen
Neodymium
14
The nucleus is:
dense
where protons and neutrons are
positively charged
where the atom's mass is
15
Why did nuclear fusion stop after The Big Bang?
The universe ran out of matter
The universe got too hot
The universe got too cold
16
Neutrons:
are in the nucleus
are negative
have a mass of 1amu
have no charge
17
Electrons:
are in the electron cloud
are negatively charged
are in the nucleus
have very little mass
18
Where are protons and neutrons located in the atom?
nucleus
electron cloud
19
Where are electrons located in the atom?
nucleus
electron cloud
20
What's the age of the universe?
13.7 million years
13.7 trillion years
13.7 years
13.7 billion years
