Question

er in
OBSERVATIONS AND CALCULATIONS
Zero error in the spring balance =
Range of the spring balance =
Least count of the spring balance =
Weight of the beaker =
Ppper.
Si no. Object
of a
Object
immersed
in tap
Weight
of the
object in immersed in
air (W)
brass
water/
strong
salty water
Weight of the Apparent Weight of Weight of
object, when
loss of the beaker the water
weight containing displaced
tap water /
displaced
(W-W)
(W,-
strong salty
water (W) weight of
water (W2)
beaker)
Tap water
ers-
1.
Glass
stopper
Strong salty
water
Solid
Tap water
2.
brass
109
Strong salty
block
water​

Answer 1

Rutherford showed that the vast majority of the mass of an atom is concentrated in its nucleus, which is composed of protons and neutrons. The mass number is defined as the total number of protons and neutrons in an atom. Consider Table below which shows data from the first six elements of the periodic table.