I really don’t know but I think you should be more specific
Answer: <em>The </em><em>alkali metals</em><em> reactivity is generally higher than the alkaline earth metals. </em>
Explanation: <em>This makes the alkaline earth metals with their two valence electrons less reactive than alkali metals with their one valence electron.</em>
<u>Alkali metals is ns1 and alkaline earth metals is ns2</u>
Answer:
1: New atoms are formed as products
Explanation:
matter (atoms) cannot be created or destroyed
unless you are God or Cinderella's fairy Godmother or something
Answer:
B
Explanation:
Not sure, but that one makes the most since
20.
Atomic number is equivalent to its protons and electrons. :)