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yawa3891 [41]
3 years ago
13

What is a group of electrons orbiting at roughly the same distance from the nucleus

Chemistry
1 answer:
Alex Ar [27]3 years ago
5 0
A shell of electrons.
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A. They must be kept separate from moisture and oxygen

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Alkali metals refers to a group of chemical elements in the periodic table. It is the common name given to Group 1 elements (excluding hydrogen). They are generally metallic in nature with physical properties like shining lustre, silvery in appearance etc. Alkali metals include lithium, Pottasium, Sodium, Rubidium etc.

One important chemical property of alkali metals is their high reactivity i.e. they tend to react quickly with other substances. For example, alkali metals react vigorously with water to form hydroxides. They also react with oxygen to form oxides. Due to this highly reactive properties, they are kept or stored away from moisture (water) and oxygen (present in air).

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