Why should a radioactive tracer used to detect diseases in internal organs emit beta particles or gamma rays? O
A Alpha radiation is too damaging to be used internally
O
B. Beta particles and gamma rays do not interact with biological molecules
C. Beta particles and gamma rays are absorbed faster by damaged cells.
o
D. Alpha particles cannot travel through several meters of body tissue.

Which is the most concentratic acid

The atomic number of an element is based on the number of electrons around its core mass of its nucleus number of protons in its nucleus number of neutrons in its nucleus

Yasmin's teacher asks her to make a supersaturated saline solution. her teacher tells her that the solubility of the salt is 360 g/l at room temperature (25 °c). how can yasmin make a supersaturated saline solution? she can add 380 g of salt to 1 l of hot water (75 °c) and stir until all the salt dissolves. then, she can carefully cool the solution to room temperature (25 °c). she can add 360 g of salt to 1 l of room temperature water (25 °c) and stir the solution until all the salt dissolves. she can add 380 g of salt to 1 l of cold water (5 °c) and stir the solution until most of the salt dissolves. then, she can carefully heat the solution to room temperature (25 °c). she can add 380 g of salt to 1 l of room temperature water (25 °c) and let the solution sit for 24 hours, so the salt dissolves.