"Where do I belong?" Below are descriptions of elements. Based on the description, your job is
to identify which group they belong in
1. I am a highly reactive gas called chlorine, with seven electrons in my outermost shell. Where do I
belong?
2. I am the extremely reactive metal potassium, with only one valence electron. Where do I
belong?
3. I am the metalloid silicon, one of the most abundant elements in Earth's crust. I only have four
electrons in my outermost shell. Where do I belong?
4. I am the calcium in your bones and teeth, with only two valence electrons. Where do I belong?
5. I am the gas neon, with a full set of electrons in my outermost shell. I do not react with other
elements. Where do I belong?
6. I am aluminum, the most abundant metal in Earth's crust, with three valence electrons. Where do
I belong?

Respuesta :

Elements are those substances that contains atoms that are indivisible by any chemical means.

The properties of these elements varies in a particular manner, therefore they are distributed into groups.

Based on the descriptions from the question, the groups are:

  1. Group 7: Chlorine is a highly reactive gas found in group 7 because it contains seven valence electrons in its outermost shell.
  2. Group 1 : Potassium is an extremely reactive metal  found in group 1 because it contains only one valence electron in its outermost shell.
  3. Group 4: Silicon is a metalloid that belongs to group 4 because it contains four valence electrons in its outermost shell.
  4. Group 2: Calcium belongs to group 2 because it contains two valence electrons in its outermost shell.
  5. Group 0: Neon is an inert gas found in group 0 because its outermost shell is completely filled up.
  6. Group 3: Aluminum is the most abundant metal found in he earth crust which belongs to group 3. This is because it contains only 3 valence electrons in its outermost shell.

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