an alkaline earth metal withIncorrect

Your answer is incorrect.

Row $1$: The chemical symbol is wrong.

Row $2$: Your answer is incorrect.

Row $3$: The chemical symbol is wrong.

Row $4$: The chemical symbol is wrong.

Read each description in the first column of the table below. If any chemical element with atomic number of $92$ or less matches the description, check Yes and enter the chemical symbol of an element that matches. Otherwise check No in the second column.

$(1)57F$

Cloudy

Search a lower atomic number less than silicon