Available Hintts) Reset Hel ..av hemen seele to so suruh 4A MO Grup A alernen s

Question

Available Hintts) Reset Hel ..av hemen seele to so suruh 4A MO Grup A alernen s sube els ) Group 8A elements have The highest principal quantum full outer principal s and p subshelis number of period 4 elements is 4 mehi pe d permen tusn six 4p electrons elements are in the 5s subshell The highest principal quantum number of period 4 elements is 5 Period 5 elements have an The valence electrons of group 3A inner electron configuration of [K) Period 3 elements have an elements are in an s and p subshell inner electron configuration of lA True False Submit

Explanation / Answer

True statements

1. period 5 elements have six 4p electrons. (inner shell filled).

2. group 8a elements have full filled outer most shell (noble gas).

3. the highest principal quantum number of period 4 is 4.

4. electronic configuration of group 3a is ns2,np1. so valence electron is in an s and p subshell.

False statements

1. valence electrons of 4a reside in the outer most shell.

their configurations are ns2 np2.

2. the highest principal quantum number of period 4 is 5

3. period 5 elements have an inner electronic configuration of [Kr].

4. period 3 elements have an electronic configuration of [Ar]

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