H He Li Be B C N O F Ne
Work Step by Step
Hi! - H He - He Lies - Li Because - Be Boys - B Can - C Not - N Operate - O Fireplaces - F This short form can be used to remember the names of the element in the first two rows. Then based on the number, determine the electronic configuration and then determine the number of valence electrons. And then place them to make the first two rows of the periodic table.