Match each of the electron structures with the element type it represents. 1 s 2

Question

Match each of the electron structures with the element type it represents.

1s22s22p63s 23p63d104s24p6 (Inert gas , Transition metal , Halogen , Alkali metal , Alkaline earth metal) 1s22s22p63s23p63d104s24p5 (Inert gas , Transition metal , Halogen , Alkali metal , Alkaline earth metal) 1s22s22p63s23p64s1 (Transition metal , Inert gas , Halogen , Alkaline earth metal , Alkali metal) 1s22s22p63s2 (Inert gas , Alkaline earth metal , Halogen , Alkali metal , Transition metal) 1s22s22p63s23p63d34s2 (Inert gas , Halogen , Alkali metal , Alkaline earth metal , Transition metal)

Explanation / Answer

You just need to count the last shell, no need to develop all others

1s22s22p63s 2 3p6 3d10 4s2 4p6 --> 8 electrons, must be an inert gas, noble gas

1s22s22p63s23p6 3d10 4s2 4p5 --> 7 electrons, must be an halogen

1s22s22p63s2 3p6 4s1 --> 1 electron, must be an alkali etal

1s22s22p6 3s2 --> 2 electrons, must be an alkaline earth metal

1s22s22p63s23p6 3d3 4s2 -> this one is tricky, it has 3d3 and 4s2, therefore, it is a transition metal

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

---