Html viewer was selected to open .htm files and that would not handle mailto: and other links. This app reset that and then next time I opened the file it asked what app to use and I could select Browser (or Chrome). Perfect. At times, I want to use Chrome to open an .html file that I put on my tablet.
Neutrons have a mass of 1.675 Ã 10-24g, which is a little heavier than the proton. Neutrons are 1839 times heavier than electrons. Like all hadrons, neutrons are made of quarks. A neutron is made of two down quarks and one up quark. One up quark has a charge of +2/3, and the two down quarks each have a charge of -1/3.
Do protons weigh the same as neutrons? YES AND NO When using Relative Atomic Mass (Mr), a proton weighs the same as a neutron. This is rounded to the nearest whole number, however. The actual weight of â¦ a proton is 1.0073 amu. The actual weight of a neutron is 1.0087 amu. As you can see the neutron actually has slightly more mass (weight) than a proton has. When using figures to calculate Mr, however, as in most periodic tables, the mass of protons and neutrons is both 1.