Use the drop-down menus to complete the
corresponding cells in the table to the right.
Alpha
Decay
Beta Decay
Gamma
Decay
Type of
emission
electron or
positron
Penetrating
power
lowest
D
Shielding
needed
thin metal
lead bricks

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates