barb1029 barb1029

29-11-2020
Chemistry

contestada

what is the difference between groups and periods on the periodic table.? What do they tell you?

Respuesta :

meerajasim meerajasim

29-11-2020

.Answer:

Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases as you move down a group or across a period.

Explanation:

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