The outer shell of the atoms in group

a) need 1 more electron to be full

b) are half full

c) are empty

d) are full

Outer shell is full

Explanation:

The elements represented by the group D are noble gases.

Noble gases have fully filled outer electronic configuration.

He=

Ne=

Ar=

Kr=

...

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.

a pan containing water is placed in a positio n where it is exposed to a 10 mile per hour wind. the pan contains a uniform depth of 1.27 cm of water, is quite wide, and has a length of 2.44 m in the wind direction. the water in the pan is at a constant temperature of 15.5 °c.