Determine the period, row, group and subgroup in which the elements with serial numbers are located 3,14,23,48,81

univerkov | December 10, 2020 | education

3. Lithium (Li) is located in the 2nd period, in the I group, the main subgroup.
14. Silicon (Si): 3 period, 4 group, main subgroup
23. Vanadium (Va): 4 period, 5 group, side subgroup
48. Cadmium (Cd): 5 period, 2 group, side subgroup
81. Thalium (Tl): 6 period, 3 group, main subgroup

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.