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The Chemical Element Astatine - Quiz test

The Chemical Element Astatine - Quiz test

With an average atomic mass of 210,the chemical element astatine is the rarest naturally occurring element in the earth\'s crust. It occurs only as a decay product of heavier elements, hence it is radioactive.

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Quiz Questions And Answers

The chemical element Astatine was discovered by?

James Cavier
Ian Camillo
Emilio Segrè
John Cavre

Astatine has an atomic number of?

85
120
101
99

The most stable isotope of Astatine has a half-life of?

2.5 hr
8.1 hr
7.6 hr
All of the above

What is the chemical symbol of Astatine?

As
At
Al
None

The melting point of Astatine is?

102 °C
202 °C
302 °C
350 °C

Astatine has a boiling point of?

336.8 °C
355.8 °C
311 °C
236.8 °C

Based on its chemical and physical properties, Astatine is a?

Rare earth
Earth metal
Halogen
All of the above

On the periodic table, Astatine is found in group?

17
20
3
5

How many neutrons has the most abundant isotope of Astatine?

110
111
120
125
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