Question

Table 4.1: Comparison of
Dalton's atomic theory
(i) Atoms are indivisible particles.
(ii) Atoms can neither be created nor destroyed.
(iii) The atoms of an element are alike in all respects.
but they differ from the atoms of other elements.
(iv) Atoms of elements combine in small whole numb
to form molecules.
* An alpha particle consists of two protons​

Answer 1

Answer:

hmmmmmmmmmmmmmmmmmmmmmm

Answer 2

Answer:

A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems. A galaxy is held together by gravity. Our galaxy, the Milky Way, also has a supermassive black hole in the middle. ... This is the picture taken by the Hubble Space Telescope showing thousands of galaxies.