Answer:
Fluorine
Explanation:
The more number of electrons on the outer shell makes the atom more reactive
Hope this helps you! This is my step-by-step work. Lemme know if you have any questions!
Answer:solid
Explanation:And a solid the malicules are compact so they can move
Answer:

Explanation:
mass of the ball = 0.25 kg
its speed v = 4.5 m/s
r = 0.75 m
let the speed be in the horizontal direction and the distance r be in the vertical direction we have :


Let the momentum about the center of intersection be P;
SO;



Let the angular momentum be Q;



Answer:
15 cm
Explanation:
= Diameter of the coin = 15 mm
= Diameter of the image of coin = 5 mm
= distance of the coin from mirror = 15 cm
= distance of the image of coin from mirror = ?
Using the equation


= - 5 cm
= radius of curvature
Using the mirror equation


= - 15 cm