B. They came up with the term “radioactivity.”
C. They conducted experiments with uranium-containing minerals and pure uranium.
E. They discovered two new radioactive elements
Kinetic energy is equal to half of an objects mass multiplied by the velocity squared.
Answer:
Buffers
Explanation:
A buffer solution is a solution containing weak acids and their salts or weak bases and their salts.
A buffer solution is an equilibrium system that resists changes in pH or pOH when a small amount of an acid or base is added hence it is a solution of fairly constant pH value.
Answeill give it a go i guess
Explanation:
Year on Gravestone Thickness at bottom Time of weathering AOW
1758 78.5 258 2.4
1766 82.5 79.6 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4
1758 78.5 258 2.4 nvm got lazy
Answer : The magnitude of the orbital angular momentum for its most energetic electron is, 
Explanation :
The formula used for orbital angular momentum is:
where,
L = orbital angular momentum
l = Azimuthal quantum number
As we are given the electronic configuration of Fe is, ![[Ar]3d^64s^2](https://tex.z-dn.net/?f=%5BAr%5D3d%5E64s%5E2)
Its most energetic electron will be for 3d electrons.
The value of azimuthal quantum number(l) of d orbital is, 2
That means, l = 2
Now put all the given values in the above formula, we get:
Therefore, the magnitude of the orbital angular momentum for its most energetic electron is,
