Period 1: 2 elements Period 2: 8 elements Period 3: 8 elements Period 4: 18 elements Period 5: 18 elements Period 6: 32 elements Period 7: 25 elements
Elements is each group have the same number of valence electrons
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It depends on what kind of label it is and what kind of period it is.
no. There is one element for each kind of atom.
they are alike because they have zeros and they are different because of the place value;hope you liked this answer
they are alike because they are different columns of digits and they are different because they have different. ddf
Period 4 and period 5 of the periodic table have the same number of elements. There are 18 elements in each period. While some elements in period 4 are calcium, iron, and zinc, elements in period 5 are tin, antimony, and iodine.
They are alike because they are all different columns of digits and they are different because they have different columns.
No, atoms of different elements are not exactly alike.
In the periodic table of the elements, each numbered row is a period.
Depend ong what place value