In (A. Dalton's) atomic model, negative electrons orbit the positively charged nucleus.
Answer:
Silk fibre is obtained from <u>silkworms</u>
whereas artificial silk is obtained by
chemical treatment of <u>wood pulp/cellulose.</u>
Explanation:
Artificial silk, or rayon, is made from cellulose, obtained from cotton or wood pulp.
So any one of them in 2nd blank is correct.
The first part of the question is 3,100 V.
The second part of the question is 200 V.