Answer:
C. Period
Explanation:
The elements from this section of the periodic table belongs to the same period.
A period on the periodic table is a horizontal arrangement of elements according to their atomic number.
- A group or family is the vertical organization of elements.
- Valence is the number of outer shell electrons an atom possess.
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Ernest Rutherford produced the nuclear model of the atom
In 1909 Ernest Rutherford designed an experiment to test the plum pudding model
In the experiment, positively charged alpha particles were fired at thin gold foil. Most alpha particles went straight through the foil
This evidence led Rutherford to suggest a new model for the atom, called the nuclear model
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Plants make their own food by using a process called photosynthesis. The plants produce glucose from inorganic molecules- carbon dioxide and water - using light. I hope this helps!