Page numbers in boldface are illustrations. Entries in boldface are glossary terms.
alpha particle, 24, 25, 26, 27, 30, 31, 33–34, 36, 38, 46–48
alpha ray, 25
atom, 4–7, 7, 9–10, 11, 14, 14, 18–21, 18, 20, 23, 24, 26, 28–31, 34, 38–39, 41–43, 48, 52
chemical changes, 33
in compounds, 43
neutral, 47
new model of, 27
non-radioactive, 31
parent, 30
planetary model of, 27
properties of, 18
atomic mass, 14, 14, 28, 30–31, 31–32, 33–34
of helium, 28
of hydrogen, 28
of natural chlorine, 32
atomic number, 28, 30–31, 31–32, 33–34, 42, 43, 49, 50
beta decay, 32, 36, 37, 40, 46
beta emission, 34
beta particle, 30, 32, 36, 37, 46
beta radiation, 25
Brownian motion, 21–22, 23, 38
compound, 5, 8–10, 11, 14, 15, 18
of hydrogen, 14
Einstein, Albert, 21–22, 23, 36, 38–39
electromagnetic
attraction and repulsion, 39
fields, 22
force, 41
waves, 49
electron, 19–21, 20, 25, 27–29, 27, 32, 33–34, 36, 37, 38–39, 41–42, 46–48
element, 5, 8–10, 14, 16–17, 17, 19, 28, 42, 52
and alchemy, 33
alkali metals, 18
Aristotle’s, 8
concept of, 11
creating heavier elements, 46–49
factories, 42
halogens, 18
heaviest known, 50
hydrogen, 14
and properties, 15
radioactive elements, 29
See also periodic table of the elements
fusion, 42, 45, 47, 48–52, 49, 51, 53
Mendeleyev, Dmitry, 15–19, 17–18, 39
molecule, 4–5, 9, 11, 12–14, 15, 21–22, 23, 38
neutron, 31–32, 33–34, 35, 36, 38–39, 41, 43, 46–48, 47, 52
nucleus, 24, 26, 27–30, 27, 31, 32–34, 32, 36, 38–39, 41, 46, 47, 48, 52
periodic table of the elements, 18, 28, 39
See also Mendeleyev, Dmitry
proton, 5, 28, 31, 32–34, 32, 36, 38–39, 41–43, 46–49, 47, 52–53
radioactivity, 24–25, 24, 29, 32–33
spectrum, 38
theory of relativity, 38