Question

1. On the basis of Thomson's model of an atom, explain how the atom is neutral as a whole.

2. On the basis of Rutherford's
model of an atom, which sub
atomie particle is present in the
nucleus of an atom?

3. Drow a sketch of Bohr's model
of an atom with three shells.

4. What do you think would be the observation U the a particle
scattering experiment is carried
our using a foil of a metal other
than gold?

grade 9 chemistry​

Answer 1

Answer:

hy mark as brainleast

nd thanks

Explanation:

1. in the model , it consist of both the negative and positive charge . which are embedded . and are equal in the magnitude

2 .protons are present in the nucleus of atom

sry other two i dont know

Answer 2

Answer:

1)Ans) According to Thomson's model of the atom, an atom consists of both negatively and positively charged particles. The negatively charged particles are embedded in the positively charged sphere. These negative and positive charges are equal in magnitude. Thus, by counterbalancing each other's effect, they make an atom neutral.

2)Ans). On the basis of Rutherford's model of an atom, protons (positively-charged particles) are present in the nucleus of an atom.

3)Ans). The answer is above....

4)Ans). If the α-scattering experiment is performed using a foil of a metal rather than gold, there would be no change in the observations. In the α-scattering experiment, a gold foil was taken because gold is a malleable and a thin foil of gold can be easily made than foils of other metals.

HOPE IT HELPS U....