Technicium - 99 emits gamma radiation. What is the change in atomic number?
Technicium-99 (99 43 Tc)
A. no change (it remains the same)
B. increases by one
C. decreases by 2
D. decreases by 1
B. increases by one
How many neutrons would there be in an atom of sulfur - 34?
A. 18
B. 8
C. 16
D. 10
C. 16
To determine the change in atomic number for Technicium-99 (99 43 Tc) when it emits gamma radiation, we need to understand that gamma radiation does not involve any change in the atomic number or atomic mass of the nucleus. Gamma radiation is a form of electromagnetic radiation emitted by an atomic nucleus as it transitions from a higher energy state to a lower energy state.
Therefore, the correct answer is A. There is no change in the atomic number of Technicium-99 when it emits gamma radiation.