Lyndsey135 Lyndsey135

03-01-2015
Biology

contestada

How many protons, electrons, and neutrons does an atom of iridium (Ir) have

Respuesta :

lrathburn lrathburn

03-01-2015

Iridium has 77 protons, 77 electrons, and 115 neutrons. You can figure out the protons/electrons from it's atomic number, 77. Because it's atomic mass is 192, subtacting the atomic number 77 from this gives you 115 neutrons!

Answer Link

Otras preguntas

1.find perimeter of a square with diagonal of 12 centimeters

which quadratic function has its vertex at (-2,7) and opens down?

1. Determine the constant of variation for the direct variation given. R varies directly with S. When S is 16, R is 80. 1/5 5 16

Determine the constant of variation for the direct variation given. Fat calories varies directly with the grams of fat. There are 27 calories for each 3 grams o

A tree with a height of 12 yards casts a shadow that is 33 yards long at a certain time of day. At the same time, another tree nearby casts a shadow that is 20

Mike is three times as old as his little sister, Mary. In 4 years, he will be twice as old as Mary. How old is Mary?

What is the average of the integers of 25 to 41

Find the area of the shaded region. leave answers in simplest radical form 1) (isosceles) b= 40 in. side= 29 in.

2x-y=4 find the slope of the graph

hexagon is equal to the area of an equilateral triangle whose perimeter is 36 inches. Find the length of a side of the regular hexagon.