The correct answer is 53.
It would be neutral if they were both at 53, however, since there's 54 electron, then it becomes negatively electrified and becomes -1. You just delete one number from it and you'll see that it's 53.
Answer:
B 10 to 20
Explanation:
0×4 = 0
10×4 = 40
20×4 = 80
30×4 = 120
40×4 = 160
60 is in between 40 and 80, so the interval into which the answer should fall is 10 to 20
Answer:
Answer is D
Explanation:
secondary consumers eat meat and manly eat the primary consumers
BRAINILEST PLEASE
Answer:
pH = 7.46.
Explanation:
- The ionization of water is given by the equation :
<em>H₂O(l) ⇄ H⁺(aq) + OH⁻(aq),</em>
<em></em>
- The equilibrium constant (Kw) expression is:
<em>Kw = [H⁺][OH⁻] = 0.12 x 10⁻¹⁴. </em>
<em></em>
in pure water and neutral aqueous solution, [H⁺] = [OH⁻]
So, Kw = [H⁺]²
∴ 0.12 x 10⁻¹⁴ = [H⁺]²
∴ [H⁺] = 3.4 x 10⁻⁸ M.
∵ pH = - log [H⁺]
pH = - log (3.4 x 10⁻⁸) = 7.46.
Ans: Elements in the same period have the same number of electron shells.
