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Elements in the same group/family of the periodic table are similar in what way?

User Hdgarrood
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Elements in the same group in the periodic table have similar chemical properties. This is because their atoms have the same number of electrons in the highest occupied energy level. Group 1 elements are reactive metals called the alkali metals.Group 0 elements are unreactive non-metals called the noble gases.
User Waseem Sarwar
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Answer:

they have the same valance electrons

Step-by-step explanation:

User Nitin Wahale
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