Explanation:
Beryllium is a group 2 element and its atomic number is 4. Electronic configuration of beryllium is
.
Since, a beryllium contains two valence electrons so, in order to attain stability it will readily lose its 2 valence electrons.
Therefore, a beryllium atom upon losing two valence electrons will acquire a +2 charge.
Thus, we can conclude that the net ion charge of Beryllium is +2.
Explanation:
Because a large amount of energy is required to break the strong inter-ionic attraction.
CaS => Ca2+ & S2-
Protons = 20
Electron = 20
Neutrons = 20
Hope this Helps :)
Friction is the force that slows down a ball, if their were no friction, it would not stop.
Answer: friction
Answer:
D
Explanation:
Its the only answer that actually makes sense and i got it right on the quiz.