If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Identify elements with similar chemical properties


An element A with electronic configuration 2,8,8,2 reacts with water to form a base, which is used in the manufacture of antacids.
Which of the following elements is more likely to be chemically similar to the element A?
Choose 1 answer: