The group 7A elements are called Halogens.
Please mark as brainliest if this helped! :)
<span>c.
reactivity
this is a physical property depends on how reactive something is</span>
Answer:
C.) Argon
Explanation:
This is because ionisation energy increases as we move from left to right in a period. Argon presents in the right most column and Argon is a novel gas and has 8 electrons in outermost orbital. So, it is highly stable. I hope I helped! ^-^
Answer:
its false ...............
Explanation:
magnesium and sodium because they are minerals and part of iron
