Why are valence electrons so important? A. They form no bonds with other atoms.
B. They are the electrons that interact with other atoms.
C. They are in the middle of the atom, shielding from the outside.
D. The number of valence electrons dictates what kind of element
the atom is.

B. They are the electrons that interact with other atoms.

Explanation:

Valence electrons are the electrons in the outermost shell of an atom. These electrons are used by atoms to form bonds with other atoms during chemical bonding.

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.