Описать, как изменяются металлические и неметаллические свойства в группах и в периодах, в которых располагаются хим. эл Описать, как изменяются металлические и неметаллические свойства в группах и в периодах, в которых располагаются данные элементы (изменения в группах – сверху вниз, изменения в периодах – слева направо). Углерод, кремний, кобальт, вольфрам

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in groups and periods, the metallic and non-metallic properties of elements change according to their position in the periodic table.

In groups, metallic properties tend to increase as you move down the group. This is because the atoms in lower rows of the group have more electron shells which results in weaker attraction between the nucleus and electrons, leading to an increase in metallic properties. Non-metallic properties, on the other hand, tend to decrease as you move down the group.

In periods, metallic properties tend to decrease as you move from left to right. This is because the elements on the left side of the periodic table have fewer electron shells and a smaller atomic radius, which results in stronger attraction between the nucleus and electrons, leading to more non-metallic properties. Non-metallic properties, on the other hand, tend to increase as you move from left to right in a period.

For the elements you mentioned, carbon and silicon are non-metals and exhibit non-metallic properties. They are located in group 14 of the periodic table, where non-metallic properties tend to decrease as you move down the group.

Cobalt and tungsten are transition metals with metallic properties. They are located in period 4 of the periodic table, where metallic properties tend to decrease as you move from left to right in the period.