So, there were two kingdoms in the Bible: Judah and Israel. But there were major differences between the two. First and foremost, Judah lasted longer than Israel. The only main reason why this happened is Judah’s kings were more faithful to God than Israel’s kings. Some of Judah’s kings tore down the idol worship (of course, there were also some who enforced it), while the Israelites continued to worship God.
Israel actually created their own religion and not one of them followed God’s command, while Judah was some what the opposite. There were more kings in Israel than Judah, which you can pin-point, obviously Judah’s kings reigned longer than Israel’s. Judah was conquered by the Babylons, while Israel was conquered by Assyria.