The electronic configuration of an element is given below. element 1: 1s22s22p4 which statement about the reactivity of the element is true? a. it is reactive because it has to gain an electron to have a full outermost energy level. b. it is unreactive because it has to lose an electron to have a full outermost energy level. c. it is reactive because it has to gain two electrons to have a full outermost energy level. d. it is unreactive because it has to gain two electrons to have a full outermost energy level.

C. It is reactive because it must gain two electrons to have a full outermost energy level.  

Step-by-step explanation:

The electron configuration of this element ends in 2s²2p⁴.

A filled energy level would end in 2s²2p⁶.

The element will be reactive, because it must gain electrons to have a full energy level, and it needs two more electrons to do this.

beta decay is the answer

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.