Answer:
The electron configuration for a
Mn3+ ion is [Ar]3d4
Explanation:
Answer: Beta particles cannot penetrate very far into solids because they <span><u>have no mass.
</u>
Reason<u>:
</u>Penetrating power of particle depending upon the velocity and mass of particle. Greater the mass and velocity. Higher will be the penetrating power. In case of Beta particles, they are electrons. Mass of an electron is 9.1 X </span>

Kg. Due to such negligible mass, they have very low penetrating power. <span /><span><u>
</u></span>
Answer:
The Industrial Revolution
Answer:
adding coefficient
Explanation:
To balance a chemical equation we have to place coefficients as needed in front of the symbols or formulas so the same number of each type of atom occurs in both reactants and products
Answer:
Explanation:convection or advection