Question

Identify whether each element is a halogen, a noble gas, or nonmetal only.

Astatine (At):

Nitrogen (N):

Krypton (Kr):

Chlorine (Cl):

Sulfur (S):

Answer 1

Answer:

Astatine (At):  HALOGEN

Nitrogen (N):  NON-METAL

Krypton (Kr):  NOBLE GAS

Chlorine (Cl):  HALOGEN

Sulfur (S): NON-METAL

[MARK THE ANSWER AS BRAINLIEST]

Answer 2

Identification of elements is as follows -

• Astatine represented by chemical symbol At is considered a metalloid as it has properties of both metal and non metal.
• Nitrogen represented by chemical symbol N is a non metal.
• Krypton represented by chemical symbol Kr is a noble gas.
• Chlroine represented by chemical symbol Cl is a halogen.
• Sulfur represented by chemical symbol S is a non metal.
• In periodic table, non metals are the elements that are present on right side of the periodic table and hydrogen.
• Halogens are the second last group in periodic table lacking only one electron in outermost shell.
• Noble gases have completely filled outermost shell and hence are non reactive in nature.