Chemistry and the Big Bang | Baamboozle - Baamboozle

English 25 Public

Review of atoms, molecules, the Big Bang Theory, and Stellar Evolution

Study Slideshow

What are the three subatomic particles and their respective charges?

proton (+), neutron (neutral), electron (-)

15

Where are each of the subatomic particles found in an atom?

p+ and n found in nucleus; e- found in cloud around nucleus

15

How is atomic mass determined?

Bottom # on the periodic table; Top number for nuclear notation; add protons and neutrons

10

What is an isotope? Give an example.

Atom with a different number of neutrons. C-14

15

How is a compound different from a molecule?

A compound combines atoms from 2 or more DIFFERENT elements, whereas a molecule combines 2 or more atoms from ONE or more elements.

20

How are the atoms in a chemical reaction changed?

rearranged

5

Based on the following chemical equation, list the reactants: A + B --> C + D

A, B

10

What is a galaxy?

A large formation of stars surrounding a black hole.

10

What makes up a solar system?

Star and anything orbiting around it

10

How does the presence of large amounts of helium in the universe support the Big Bang Theory?

Large amounts of helium provide evidence that the universe was really hot.

15

In basic terms, describe the Big Bang Theory.

The universe is expanding and cooling.

20

When did the universe begin?

13.7 billion years ago

15

When did the solar system form?

4.6 billion years ago

10

When does H fusion occur during a star's life cycle?

protostar/ main sequence stage

10

When does He fusion occur during a star's life cycle?

red giant/ red supergiant phase

15

How is the charge of an atom determined?

atomic # - # e- or # p+ - # e-

20