Question

a) Assertion(A): Calcium and Argon are isobars.
Reason(R): Calcium and Argon have same number of electrons.
i) Both A and R are true and R is correct explanation of the assertion
ii)Both A and R are true and R is not the correct explanation of the assertion
iii) A is true but R is false
iv) A is false but R is true

give explanation plz
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Answer 1

Answer:

Both A and R are true and R is correct explanation of the assertion

Explanation:

Isobars have different atomic numbers. ... As both have same mass number which indicates same number of nucleons i.e. Neutrons and protons, they are isobars.

Both the elements have same atomic mass equal to 40 but different atomic numbers, i.e. argon has atomic number equal to 18 and calcium has atomic number equal to 20.

Answer 2

Answer:

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.