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What group and period is Caesium?

What group and period is Caesium?

Caesium
Atomic number (Z) 55
Group group 1: hydrogen and alkali metals
Period period 6
Block s-block

What group number is cadmium in?

12
Fact box

Group 12 321.069°C, 609.924°F, 594.219 K
Period 5 767°C, 1413°F, 1040 K
Block d 8.69
Atomic number 48 112.414
State at 20°C Solid 114Cd

What is the group number on an element?

The group number in the periodic table represents number of valence electrons of the elements in a certain group. For example, all the elements in Group−1 have 1 electron in their outer most shell.

What is the mass number of Cesium?

132,90545 u
Caesium/Atomic mass

What is the group of helium?

Group 8A
Group 8A — The Noble or Inert Gases. Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn).

Is cadmium banned in Europe?

Cadmium is one of six hazardous substances banned from use in Europe in electrical and electronic equipment by the RoHS directive, which was designed to protect human and environmental health.

What are some facts about cesium?

Facts About Cesium. Lepidolite crystal is a source of lithium, rubidium and cesium. Cesium is a rare, silver-white, shiny metal with brilliant blue spectral lines; the element’s name comes from “caesius,” a Latin word meaning “sky blue.”. It is the softest metal, with a consistency of wax at room temperature.

How is cesium harmful?

Excessive cesium may negatively alter cell membrane integrity and cytoplasmic components and cause genetic damage. It may also have significant effects on both the central and peripheral nervous systems. It may cause epileptic seizures because it can share the same receptor as the inhibitory neurotransmitter amino acid glycine.

What elements combine with cesium?

Cesium has the second lowest melting point of all metallic elements, which limits its uses. Cesium readily combines with oxygen and is used as a getter, a material that combines with and removes trace gases from vacuum tubes.

Is cesium on the periodic table?

Cesium (Cs) is a chemical element in the periodic table with atomic number 55 discovered by Fustov Kirchhoff and Robert Bunsen in the year 1860.

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