Rachel White (Ginnifer Goodwin) is a single attorney working in a New York law firm. After too many drinks on her 30th birthday, Rachel grabs a cab with her friend, Dex (Colin Egglesfield) and playfully reveals she has had a crush on him since law school.
The elements in Group II also make positive ions, but instead of losing a single electron, their atoms lose 2 electrons when they turn into ions: you will find these metals in the second column of your periodic table so they are Group II.
(a). (i) Determine the charge, in C, of a nucleus. (ii) A positive ion with a nucleus has a charge of 4.80 Ã 10 â19 C. Determine how many electrons are in this ion. (4). (b) A nucleus may decay by emitting two â particles to form a plutonium nucleus. State what X and Y represent and give the numerical value of each.