Question

Characteristics of Group II elements.!!!
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Answer 1

In the pic of my book the green where I have marked are Group 2 elements .

Group 2 elements characteristic:

▪︎ The are known as alkaline earth - metals .

▪︎ These all elements have + 2 electrons .

▪︎ In these elements many are reactive .

▪︎ In these some are heavier elements .

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Answer 2

Answer:

$\huge\mathfrak\red{Alkaline\: Earth \: Metals\: (Group \: 2) }$

$\huge\red{Characteristics \: of \: Group \: II \: Elements}$

• The alkaline-earth elements are highly metallic and are good conductors of electricity.
• They have a gray-white lustre when freshly cut but tarnish readily in air, particularly the heavier members of the group.
• Beryllium is sufficiently hard to scratch glass, but barium is only slightly harder than lead.
• The melting points (mp) and boiling points (bp) of the group are higher than those of the corresponding alkali metals; they vary in an irregular fashion, magnesium having the lowest (mp 650 °C [1,202 °F] and bp 1,090 °C [1,994 °F]) and beryllium the highest (mp 1,287 °C [2,349 °F] and bp about 2,471 °C [4,480 °F]).
• The elements crystallize in one or more of the three regular close-packed metallic crystal forms.

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