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Question 1

Why does the mass of an atomic nucleus differ from the total of its parts?

Answer 1

mass is converted into energy

Question 2

What is the name of the location and particles where almost all of an atoms mass is located?

Answer 2

Nucleus; protons + neutrons

Question 3

Where is almost all of an atoms volume located, and what particles are found there?

Answer 3

Electron Cloud; electrons

Question 4

Which of the three isotopes of carbon exist in greatest abundance (12C, 13C, 14C)?

Answer 4

12C because it is the most abundant of the three. the other isotopes are much larger and the atomic mass id closest to 12 amu

Question 5

Copper= blue-green flame. Lithium= red flame. Which has a higher energy of visable light as its major emission?

Answer 5

Copper

Question 6

What causes different colors to be emitted?

Answer 6

electrons move to higher levels when ‘excited’. The electrons eventually fall into a lower, stable level and release electromagnetic energy (light)

Question 7

An electron moving from a low to a high energy level

Answer 7

Absorption

Question 8

An electron moving from a higher to lower energy level

Answer 8

Emission

Question 9

The relationship between FREQUENCY, WAVELENGTH, and ENERGY OF LIGHT

Answer 9

light has high value in wavelength = low value in energy/frequency

Question 10

Why can an atom only absorb certain wavelengths of light?

Answer 10

only specific energy levels are available for electrons to exist in them

Question 11

Heisenberg Uncertainty Principle

Answer 11

electrons move so fast that it is not possible/uncertain to know both where something is and how fast it is going at any given time

Question 12

Shape and orientation of S and P orbitals

Answer 12

S= spherical, one oreintation around nucleus. P= peanut shape, 3 orientations around nucleus