Jer3eaa3nmyDeWab Jer3eaa3nmyDeWab

24-01-2017
Chemistry

contestada

What is relative atomic mass of an element and why is it a decimal?

Respuesta :

wolffiegirl wolffiegirl

02-02-2017

The atomic mass is an average of the sum of protons and neutrons in an atom. For example, chlorine always has 17 protons but it's atomic mass is 35.45. That means it usually has 18 or 19 neutrons.

Answer Link

Otras preguntas

Electricity, Force, Energy, Motion, and Light are concepts investigated in the study of ____.

What is the slope of the line that passes through the points (-5,4)and (-15,-4)

WILL GIVE BRAINLIEST!!!!!!!! When the Second Reich was created, Bismarck set up a two-house legislature and a constitution. What kept this government from being

Element X is a radioactive isotope such that every 66 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 240 grams, how

Who was John C Calhoun?

a u shaped valley is created by a, rivers. b. glaciers. c, winds.

Jeremy can row 3/8 of a mile in 1/4 of an hour. What is the unit rate that describes the miles per hour?

"Optimal Health" is the achieving of : *

Who is the president of Nigeria?

Mrs. Oakes drove for 2 hours and went 50 miles. She then drove 3 more hours an went 60 miles. What was her average speed for the whole journey? Options -22 mi