27. Technicium - 99 emits gamma radiation. What is the change in atomic number?
Technicium-99 (99 43Tc)
A. no change (it remains the same)
B. increases by one
C. decreases by 2
D. decreases by 1
Technicium - 99 emits gamma radiation. What is the change in atomic number?
Technicium-99 (99 43Tc)
A. no change (it remains the same)
B. increases by one
C. decreases by 2
D. decreases by 1
A. no change (it remains the same)
To determine the change in atomic number for Technicium-99 (99 43Tc) after it emits gamma radiation, we need to understand the process of gamma decay.
Gamma radiation does not affect the atomic number, as it involves the emission of high-energy photons from the atomic nucleus without any changes to the atomic structure or composition. Therefore, the correct answer is:
A. no change (it remains the same)
To determine the change in atomic number for Technicium-99 (99 43Tc) when it emits gamma radiation, we need to understand the concept of atomic number and how it relates to radioactive decay.
Atomic number represents the number of protons in an atom's nucleus. When an atom undergoes radioactive decay, it transforms into a different atom by emitting particles or radiation.
In this case, Technicium-99 (99 43Tc) emits gamma radiation. Gamma radiation does not involve the ejection of any particles but releases high-energy photons. It does not result in any change in the number of protons (atomic number) or neutrons (mass number) in the Technicium-99 atom.
Thus, the change in atomic number is A. no change (it remains the same).