Question

question 3
which of the following is the correct symbol for krypton?
periodictable.pdf
○ a. k
○ b. kr
○ c. ky
○ d. ke

Explanation:

Krypton is a noble gas element. Its standard chemical symbol, as defined in the periodic table, is derived from its name: the first two letters, with the first capitalized. Option "K" is the symbol for potassium, while "Ky" and "Ke" are not valid symbols for any element.

Answer:

b. Kr