Chemistry
Copy and complete the following sentences choosing the correct word or words from those given in brackets at the end of each sentence :
The similarities in the properties of a group of elements is because they have the same …………… [electronic configurations, number of outer electrons, atomic numbers.]
Periodic Table
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Answer
The similarities in the properties of a group of elements is because they have the same number of outer electrons.
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If an element is in Group 17 [or Group 7A] is it likely to be metallic or non-metallic in character ?
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