Answer:
it is not a chemical change
Explanation:
it is a physical change as a paper towel can be dried in the sun to turn into a regular paper towel thus proving that a paper towel absorbing water is a physical change not a chemical change
Explanation: Ca generally loses two electrons from its outer shell to form a Ca2+ ion.
Hope this helped!!
Could I get brainliest by chance?!
Explanation:
The emission of a beta particle is the result of the rearrangement of the unstable nucleus of the radioactive atom in order to acquire stability. For that, a phenomenon occurs in the nucleus, in which a neutron decomposes giving rise to three new particles: a proton, an electron (β particle), and a neutrino. The antineutrino and electron are emitted. The proton, however, remains in the nucleus.
The symbol is used to represent beta particles.
Answer: b. Beta
