500
The atoms of a certain element each contain 11 protons and 1 valence electron. Which statement correctly identifies this element and describes its chemical reactivity?
A. The element is Sodium and it is highly reactive
B. The element is Fluorine and it is not very reactive
C. The element is Sodium and it is not very reactive
D. The element is Fluorine and it is very reactive
What is A Sodium and its highly reactive?