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Week 4 Quiz CHM Flashcards | StudBud

Explore/Week 4 Quiz CHM

Week 4 Quiz CHM

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Atomic forces, Bohr model, valence electrons, BBT, where do elements come from, periodic table

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Questions 11

Answers

1
What holds the nucleus of an atom together?
Attraction between protons and electrons
Strong nuclear force
Glue
Electromagnetic force
2
Which of the following is evidence for the big bang theory?
Cosmic microwave background
All of the above
Expansion of the universe
Hydrogen and helium are the most abundant elements
3
We can tell that the universe is expanding after the Big Bang because...
Stars dying in supernovas
The sun is bright
Red-shift of light from stars
Expanding star spectra
4
How many valence electrons are in this atom?
7
4
5
3
5
What are valence electrons?
The elements in the outermost shell (circle)
All the electrons in the element
Electromagnetic fields
The electrons in the nucleus
6
How many valence electrons are present below?
4
3
2
1
7
What color has the longest wavelength?
Blue
Purple
Green
Red
8
The process by which atomic nuclei combine to form new atom is called...
Gamma decay
?????
Fission
Nuclear fusion
9
How are you feeling about tomorrow's quiz?
Meh (so-so)
I got this!!
We have a quiz tomorrow?
I need HELP
10
Elements are created through what process?
Beta decay
Nuclear fusion
Stars fusing together
Explosions
11
What is atomic number?
How small the atom is
The number of protons
Just a number...?
How much the atom weighs