In excitation electrons move from an energy level to a higher energy level
and ionization is to remove an electron from an atom.
Answer:
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Explanation:
Answer:
0.000121 year⁻¹
Explanation:
The half life is defined as the time at which the reactant's concentration reduced to half.
The formula for the half life for a first order kinetic reaction is:
Where,
is the half life
k is the rate constant.
Thus, Given that:
Half life = 5730 years
Where, k is rate constant
So,
<u>The rate constant or decay constant, k = 0.000121 year⁻¹</u>
Tentacles with stinging cells, 2 body layers (ectoderm & endoderm), radially symmetric