Answer:
I believe Na
Explanation:
Copper, because it is the only metal out of all of them.
Therefore copper is the only element that can loose electrons to have a positive charge, it is the most likely to become a cation.
Run clothes washer only when its full
Answer:
E = 26.4 ×10⁻²⁷ j
Explanation:
Given data:
Energy of energy =?
Frequency = 4×10⁷ Hz
Solution:
Formula:
E = hf
E = hf
E = 6.6 ×10⁻³⁴ m²Kg/s . 4×10⁷ Hz
Hz = s⁻¹
j = m²Kg/s
²
E = 26.4 ×10⁻²⁷ j.
