Answer:
Explanation:
In alpha decay alpha ray comes out . Apha ray is nothing but nucleus of helium atom whose atomic no is 2 and atomic weight is 4 . Hence in alpha decay , atomic weight reduces by 4 and atomic no reduces by 2. For gamma emission , there is no change in atomic number and atomic mass.
⁹²₂₇AL ⇒ ⁸⁸₂₅X + ⁴₂He + γ
X is Manganese .
Answer:
C
Explanation:
will silver wires conduct electricity better than copper wires ?
A synthesis would be A+B-->AB its combining, decomposition is AB-->A+B, its the breaking up of a substance.
Answer: A wave
Explanation:
Because it’s the one that’s cause the new medium to go between the two media.
