Arrange in order of increasing atomic size use appropriate < > -= symbol to separate substances in the list 1. The period 2 elements Be,B and N
The group 4A elements Sn,Si, and Pb
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To arrange the elements in order of increasing atomic size, we need to consider their atomic numbers. The higher the atomic number, the larger the atom.
For the period 2 elements Be, B, and N:
1. B < Be < N
Explanation:
- Beryllium (Be) has an atomic number of 4. It is the smallest atom among the period 2 elements.
- Boron (B) has an atomic number of 5. It has a larger atomic size compared to beryllium but is still smaller than nitrogen.
- Nitrogen (N) has an atomic number of 7. It has the largest atomic size among the period 2 elements.
For the group 4A elements Sn, Si, and Pb:
1. Si < Sn < Pb
Explanation:
- Silicon (Si) has an atomic number of 14. It is the smallest atom among the group 4A elements.
- Tin (Sn) has an atomic number of 50. It has a larger atomic size compared to silicon but is still smaller than lead.
- Lead (Pb) has an atomic number of 82. It has the largest atomic size among the group 4A elements.