Question

question 6 1 pts which of these elements is commonly found as an ion in organisms? hydrogen carbon oxygen question 7 1 pts how many valence electrons does nitrogen have? 8 4 5 1 2

Explanation:

• For Question 6: Hydrogen can exist as a proton (H⁺) in biological systems, while carbon and oxygen usually form covalent bonds rather than being commonly found as simple ions in organisms.
• For Question 7: Nitrogen is in group 15 of the periodic table. The number of valence electrons of an element in group n (where n is from 1 - 18) is given by n - 10 for groups 13 - 18 and is equal to the group number for groups 1 - 2 and 13 - 18. Nitrogen is in group 15, so it has 5 valence electrons.

Answer:

Question 6: Hydrogen
Question 7: 5