Atomic radio increases as number of valence electrons increase. Hence the first and fourth statement are wrong. Electronegativity is highest for elements on the TOP right hand corner of the periodic table so the third statement is wrong. Hence the answer is the third statement
Answer:
Sunlight penetrates the top layers of the ocean, so photosynthesis occurs there.
Explanation:
1. element
2. compound
3. element
4. compound
5. compound
6. compound
basically, if its on the periodic table, its an element. for example, rock can be made of many things in the periodic table, therefore its a compound. salt, is NaCl, which are two elements put together, therefore its a compound.
