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topjm [15]
2 years ago
12

Plz help thx brainliest btw :)

Chemistry
2 answers:
katrin2010 [14]2 years ago
8 0
I’m gonna answer so you can mark the person above brainliest.
Marina86 [1]2 years ago
3 0

Answer:

1. earth metal 2. halogen 3.The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. ... Elements in the periodic table are organized according to their properties.

Inventor: Dmitri Mendeleev please name most brainliest

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