The answer is B. As the element X is from group two. This means two electrons can be lost. However nitrogen is from group 5 . You need three more electrons to fill the electron shell. Therefore, you need to find the LCM of 2and 3,which is six. 6over 2 is 3 . Which means you need three element X
Answer:
D
Explanation:
A catalyst speeds up a chemical reaction, without being consumed by the reaction. It increases the reaction rate by lowering the activation energy for a reaction.
Answer:
Light
Explanation:
Light is the form of energy which enables us to see any object.
Answer:
well actually that depends
Explanation:
that depends on the force of the launch of throw but a common would be like in 2-3secobds
Answer: displacement
Explanation:
According to the definition of displacement it is the shortest distance between two points.