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Module 1: La tabla periódica

Apuntes
Study Reminders
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Significan de los grupos

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    Saturday

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Chemistry - What groups mean

What groups mean

As you will have noticed, the groups correspond to the numbers of
electrons found in the outer shell of the atoms in that group. But what
does this mean?

Scientists have discovered that it is the number of electrons in the outer
shell of an atom, which governs the way the atom behaves. All the metals in
Group II for example, react in the same way with other elements. This is
very useful in predicting what will occur when new compounds are being
created, and has also led to new elements being discovered to "fill a hole"
in the periodic table.

Explore the periodic table below for more information on the groups.

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