Explanation:
4 x 6.02 x 10²³ = 2.41 x 10²⁴
Chlorine. Electronegativity rises as you go up and to the right on the periodic table.
4.22 grams.
1. First find out how much AgNO3 weighs with one mole (107.87 g Ag + 14.007 g N + 48 g O = 169.89 grams)
2. Find the percent of Ag you have. So, (107.87 g/mol Ag)/(169.89 g/mol AgNO3)= 0.63 * 100 = 63%.
3. If you have 6.7 grams total, you know 63% of it is going to be silver, so just multiply 6.7 grams by .63 and you get 4.22 g Ag
1s2,2s2.2p6,3s2,3p6,3d4,4s2
Answer: Option (B) is the correct answer.
Explanation:
A change which brings change in composition of atoms of a substance to result in the formation of new substances is known as a chemical change.
Therefore, in a chemical change new substances are formed which have different properties as compared to their reactants.
For example, 
Thus, we can conclude that during all chemical changes atoms rearrange to form new substances.