Name one thing that changes as we move from left to right across the periodic table. Name one thing that stays the same as we go down each column in the periodic table. PLEASE HELP:)))

- Atoms get smaller as you go across a row from left to right.

- Atoms get bigger as you go down a column on the periodic table.

Explanation:

Hope this helps!

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.