Question

What is the atomic number of Krypton?
A.36
B.35
C.38
D.34

Answer 1

Hint:Atomic number is the number of the chemical compound which is present in the periodic table. The number of protons is equal to the atomic number. The atomic number is also equal to the number of electrons. The atomic number is written at the left hand side at top of each element.

Complete step by step answer:
The atomic number (symbol Z) of an element is the number of protons found within the nucleus of each atom of that detail. The atomic number uniquely identifies a chemical element. It is identical to the number of charges present in the nucleus. In an uncharged atom, the proton number or atomic number is likewise equal to the number of electrons present.
The sum of the atomic number Z and the number of neutrons N present gives the mass number A of an atom. Since protons and neutrons have about the same mass (and the mass of the electrons is negligible for lots purposes) and the mass defect of nucleon binding is continually small as compared to the nucleon mass, the atomic mass of any atom, while expressed in unified atomic mass devices (making a quantity called the "relative isotopic mass"), is within 1% of the complete wide variety A.
Hence option (1) is correct.

Additional Information:
Krypton is an element which is denoted by Kr and atomic number 36. It is a colourless, odourless, tasteless noble gasoline that is found rarely in the environment and is often used with some rare gases in fluorescent lamps. With rare exceptions, krypton is chemically inert.

Note:
It is colourless, odourless and tasteless noble gas. It also occurs in traces in the atmosphere. It is one of the rare gases which is used in fluorescent lamps. It is chemically inert. Krypton, like the different noble gases, is utilized in lighting and pictures. Krypton light has many spectral traces, and krypton plasma is beneficial in shiny, high-powered fuel lasers (krypton ion and excimer lasers), each of which resonates and amplifies a unique spectral line.