What is the charge on iodine (I) when it forms an ion? (1 point)

1+

1−

2+

2−

1-

Explanation:

Iodine is a group 7 elements. Group 7 elements are called halogens.

Iodine as a group 7 element has 7 electrons in its outermost shell and needs just one more to complete its octet state. Iodine is therefore electronegative with a charge of -1

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.