Catheryn Catheryn

03-09-2014
Chemistry

contestada

How many neutrons are probably in the nucleus of an element of atomic weight 197?
a. 43
b. 79
c. 83
d. 100
e. 118

Respuesta :

pyromorphite pyromorphite

04-09-2014

atomic weight = 197
symbol = Au
electrons = 79

neutrons = 197 - 79 = 118

answer: E

Answer Link

Otras preguntas

write an essay on immigration

Why was it SUCH a big deal that Mesopotamians came up with a written language? * they were the first civilization to have pen-pals they were the first civilizat

(6-8)(9-10)-(4+2)(6+3) simplified in steps

Question 2 of 5 A geologist is studying a mountain. It is made up of many relatively even layers of igneous rock. What can the geologist conclude about how the

Micheal buys a new jacket for 90 dollars. Sales tax is 8%. How much does Micheal actually have to pay?

Find the area of square that has the same perimeter as a rectangle whose length and breadth are 18cm and 8cm respectively

Help Please Help Please Help

THIS IS DUE TODAY PLS PLS PLS HELP ME ON IT :(

don't take life seriously, no one makes it out alive.

What is the equation of the line that has a slope of Y and contains the point (0, 3)?