E Question List Question 2 of 15
Total Points: 1 out of 15
Which of these is the correct order for filling orbitals as you
proceed across the 4th row on the periodic table?
4s, 3d, 4p
4p, 3d, 4s
3d, 4s, 4p
4s, 4p, 3d

☆ionisation energy increases across a period from na -> ar☆ionisation energy decreases down a group from li -> fr☆ionic radius decreases across a period from na -> cl☆ionic radius increases down a groupfrom f -> ii hope it clarifies your doubts

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.