Which electron configuration is correct for a sodium ion?
(1) 2–7 (3) 2–8–1
(2) 2–8 (4) 2–8–2

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy

Type the correct answer in each box. use numerals instead of words. the distance between earth and the moon is about 384,400 kilometers. the distance can be written in scientific notation as a × 10b kilometers, where a = and b = .