Word: electronic
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Dates: during 1930-1939
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...proton, which is 1,845 times as heavy as an electron, might make an electron its satellite. Such a simple system of one electron revolving around one proton makes up a common atom of hydrogen, simplest of the 92 elements. (Helium, next simplest, has an alpha particle for its core, two electrons for satellites. Other atoms have more protons, more electrons...
...another possible arrangement, the electrically positive proton might join with the negative electron. Generally, physicists believe, the two cancel each other. Their energy disappears. But last week Dr. Chadwick thought, "not always." The proton and electron in such case may join together like the knobs of a dumbbell...
That is the neutron. It lacks electrical characteristics. The charges of proton and electron have bound and balanced each other. A particle has been formed halfway between nascent electricity and atomic hydrogen. It hops out of radioactive substances as do alpha particles...
...physics, Dr. Theodore Lyman, they gave the Frederick Ives Medal, and where they heard learned discourse. Dr. Albert Wallace Hull of General Electric described two meticulous counters:1) the device of Dr. Merle Anthony Tuve of the Carnegie Institution (TIME, Feb. 8), which measures a current of one electron per second, smallest current measured so far; 2) the device (including thyratron tubes) of Dr. Wynn Williams of Cambridge University, England, which counts alpha particles (nuclei of helium atoms) as they explode from radium at a speed of 12,000 mi. per sec., and ten microseconds apart. (A microsecond...
Scientists Urey, Murphy and Brick-wedde hoped eventually to get H² in a pure form. Having two protons and one electron in its nucleus, it is twice as heavy as the previously known hydrogen, whose nucleus has one proton. The discoverers thought H² would be of no commercial use. It would give water different spectral color, new physical properties, but would not affect the taste. But since its nucleus is the simplest yet found consisting of more than one particle it would be a great aid in the study of nuclei, might add to data on the cosmic ray which...