Answer:
The fourth one.
Explanation:
The fourth graph shows an object speeding up ( accelerating ) coz the velocity (tangent at the curve ) at every point is different, hence denoting an acceleration.
There are 8 protons
Answer: a,b
Explanation: because a scientific theory is something that been thought of and tested multiple times.
b
Br
because bromine is more reactive as reactivity increases on moving from left to right in p-block. hope this make sense :)