Question

guess the element which is surrounded by oxygen, chlorine,phosphorus and selenium​

Answer 1

Answer:

carbon dioxide.GGGNNBN

Answer 2

The element comes between oxygen, chlorine, phosphorus and selenium.

Explanation:

• Oxygen is a element of second period and 16th group. It belongs to chalcogen family which consists of oxygen, sulfur, selenium and tellurium.
• Chlorine is a element of period third and belongs to 17th group. It belongs to halogen family. So, the guessing element must come before chlorine.

• Phosphorus is a element which belongs to third period and group 15. So, the guessing must be after phosphorus i.e. belongs to 16th group.
• Selenium is a element of fourth period and belongs to 16th group.
• Therefore, the guessing element belongs to third period and group 16. So, the element is Sulfur.

Sulfur is the element which comes between oxygen, chlorine, phosphorus and selenium.