Muscle – able to contract (shorten) to move body

The Correct choices are :
- 1. The elements have filled valence levels.
- 2. potassium (K) with a 1+ charge
To determine the k for the second condition, we use the Arrhenius equation which relates the rates of reaction at different temperatures. We do as follows:
ln k1/k2 = E / R (1/T2 - 1/T1) where E is the activation energy and R universal gas constant.
ln 1.80x10^-2 / k2 = 80000 / 8.314 ( 1/723.15 - 1/593.15)
k2 = 0.3325 L / mol-s
I don't know which ones r, could u add options, maybe?
When they become a solid, as in a solid the particles are packed tightly together and have little space between them, thus at solid state , particles are more ordered.