two groups of students were tested to compare their speed working math problems. each group was given the same problems. One group used calculators and the other group computed without calculators. What is the (If, then, because)hypothesis?

Sorry i dont understand the question can you rephase it?

☆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

Answer trigonal pyramidal;