Question

How do we know what parts make up the atom?

Answer 1

Nucleus, electrons, and protons

Step-by-step explanation:

Multiple experiments and results accumulated over the years. Dalton is credited through his ray cathode tube experiments, and Rutherford's Gold Foil experiment led to the discovery of the positively charged nucleus and protons. His student Chadwick continued his studies and discovered the neutron.

Answer 2

Answer:nucleus protons nuetrons electrons

Step-by-step explanation:

The smallest partical into which an element can be divied and still be the smallest element

.( A basic unit o f matter)