Explanation:
a potassium ion has a charge of 1+.
Magnesium is in the second column and therefore has 2 electrons in its outermost shell. It would tend to lose two electrons and form a +2 ion. Potassium is in the first column and therefore has 1 electron in its outermost shell. It would tend to lose one electron and form a +1 ion.
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Answer:
the correct answer is B
Explanation:
The quantum numbers are the constants obtained when solving the Schrodinger equation, the first quantum number or principal quantum number (n), can take values from zero to infinity.
This quantum number is placed as a coefficient in the quantum distribution.
In this case for phosphorus, the number is n = 3
the correct answer is B
Answer:
greatest height=48.05 m
Explanation:
Applying motion equations,
upward motion (g= -10m/s2)
where
u = initial velocity
v = final velocity
g = gravitational acceleration
s = distance
2)when the rock is at the highest point the velocity = 0
total high to the highest point = 18.05 +30
= 48.05 m
That's actually a pretty good definition of ENERGY .
Depends how high the cliff is. The longer the drop, the faster you’ll go. Since the fall was 4.2 seconds he wouldn’t be going too too fast