A helium nucleus has two protons and two neutrons. How many electrons would it take to equal the mass of a helium nucleus?
Given : Helium nucleus has two protons and two neutrons.
Number of electrons would it take to equal the mass of a helium nucleus = ?
Mass of a proton = 1.0073 amu.
Mass of a neutron = 1.00867amu.
Since the nucleus of a helium made up of 2 neutrons and 2 protons, the mass of the nucleus is :
= 2(1.0073 amu) + 2(1.0086amu)
= 4.031 amu.
Textbook: Introductory Chemistry
Author: Nivaldo J Tro
The full step-by-step solution to problem: 38P from chapter: 4 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. Since the solution to 38P from 4 chapter was answered, more than 318 students have viewed the full step-by-step answer. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. This full solution covers the following key subjects: helium, nucleus, Neutrons, mass, electrons. This expansive textbook survival guide covers 19 chapters, and 2045 solutions. The answer to “A helium nucleus has two protons and two neutrons. How many electrons would it take to equal the mass of a helium nucleus?” is broken down into a number of easy to follow steps, and 23 words.