The soft silvery metalic element which ionizes easily when heated or exposed to light and is present in atomic clocks is –

Related MCQs

• In silvery paints, the main constituent present is -
• The umber of neutrons present in an element having mass number 226 and atomic number 88 is–
• When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy state, they emit light, which we can observe in -
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• An atom of an element with mass number 23 and atomic number 11 will have-
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