A Visual Encyclopedia of the Periodic Table

159 The Nitrogen Group Safety match box solid forms, including red, white, black, and violet. The glow seen by Brand was caused ...

160 The Nitrogen Group This ore is found in hot volcanic springs. This tip is an alloy of arsenic and lead. Arsenic As 33 Forms ...

161 The Nitrogen Group These needle- like cr ystals contain antimony, lead, and iron. These matches with antimony in the tip bur ...

162 The Nitrogen Group Bi 83 Bismuth is a radioactive element but its atoms are relatively stable and last for millions of years ...

163 The Nitrogen Group Moscovium Mc 115 pigments are used in paints and cosmetics, while several bismuth compounds are also in m ...

Pure tellurium (Te) can form silvery crystals. 164-165_Oxygen_Group_Opener.indd 164 02/12/16 6:52 pm ...

The Oxygen Group This group does not include any natural metals. The first two members, oxygen (O) and sulfur (S), are non-metal ...

166 The Oxygen Group Oxygen O 8 Oxygen is the most common element in Earth’s crust. Oxygen and its compounds make up half of all ...

167 reacts with a fuel and produces fire. Oxygen is also used up when it reacts with other elements to form compounds called oxi ...

168 The Oxygen Group Known since ancient times, sulfur is one of the few non-metals that can be found pure in nature. This yello ...

169 The Oxygen Group minerals, such as celestine. Many sulfur compounds smell bad. For example, the rotten- egg smell of volcani ...

Danakil Depression This hot spring in Africa’s Danakil Depression is surrounded by a yellow crust of pure sulfur. The sunken reg ...

At more than 100 m (330 ft) below sea level, the Danakil Depression is one of the lowest points on Earth’s surface. This area re ...

172 The Oxygen Group Selenium Se 34 Forms Uses Selenium is named after Selene, the Greek goddess of the Moon. This element is a ...

173 The Oxygen Group Tellurium Te 52 Forms Uses Tellurium is one of the 10 rarest elements on this planet. It gets its name from ...

174 The Oxygen Group Polonium Po 84 Forms Uses 84 84 125 State: Solid Discovery: 1898 This mineral contains uranium atoms that b ...

175 The Oxygen Group Livermorium Lv 116 Lawrence Livermore National Laboratory, California, USA Heavy ion cyclotron, Joint Insti ...

This glass sphere contains pure iodine (I). 176-177_Halogen_Group_Opener.indd 176 02/12/16 6:52 pm ...

The Halogen Group Atomic structure All members have seven electrons in the outer shell of each atom. There is space for one more ...

178 The Halogen Group Forms Fluorine F 9 9 10 State: Gas Discovery: 1886 This highly reactive element is incredibly dangerous wh ...