In the atomic structure what do Group 1 elements have in common?

They each have 1 electron on their outer most shell.

They only require 1 electron to gain a full outer shell

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1If the relative mass of a neutron is 1 what is the mass of a proton?
1. A1
2. B1/2000
3. C2
2Where in the atom is an electron found?
1. AIn the nucleus
2. BIn the shells
3. CInside a neutron
3In the atomic structure what do Group 1 elements have in common?
1. AThey each have 1 electron on their outer most shell.
2. BThey are all very reactive.
3. CThey only require 1 electron to gain a full outer shell
4What are the Group 7 elements called.
1. AAlkaline Metals
2. BNoble Gasses
3. CThe Hallogens