Question

12. Suppose that a stable element with atomic number 120, symbol Z, has been discovered. a. Write the ground-state electron configuration for 2, showing only the valence-shell electrons. b. Would Z be a metal or a nonmetal? Explain in terms of electron configuration. c. On the basis of periodic trends, would Z have the largest atomic radius in its group or would it have the smallest? Explain in terms of electronic structure. d. What would be the most likely charge of the Zion in stable ionic compounds? e. Write a balanced equation that would represent the reaction of Z with water. f. Assume that Z reacts to form a phosphate compound. i. Write the formula for the compound formed between Z and the phosphate ion? ii. Predict whether or not the compound would be soluble in water. Explain your reasoning utilizing Coulomb's Law.

Answer 1

- 12a) 2=120 1262 [0g] 8s² Og: Oganesson chemical element with atomic no.118 16) Since 2 has only 2 € in Valence Shell which can be easily lost to acquire stable noble gas configure Z is Metal oble gas configuration cu 2 has 8 Shells .so, et I will be largest in its group. (d) To be stable and attain nearby noble gas configuration, it has to I loose 2 ē. charge is t2 le) 2 +250 - 2(OH)₂ + H₂ It produces hydroxide and Hydrogen gas. (f) i) 7 X Pou ₃ Zz (Poy) a ii) since Z z (Poy) is an lonic compound and being holar it is soluble is Iholar solvents like water.