Question

Which of the following is true about the structure of an atom?

1. Protons are found orbiting the nucleus around an atom
2. Most of the mass of an atom is found in the nucleus
3. The atomic number always refers to the number of neutrons in an atom
4. The neutrons in an atom are positively charged

Please give real answers. It's 50 points, 5 stars rated and a brain smart.

Answer 1

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.