Evolution is defined as change in gene frequency
Elements in group 17 have similar properties because they all the same number of electrons and valence electrons.
Answer:
D. Metals
Out of the 118 elements only about 30% are not made of metal. This can be tested easily if you have household items that have metal in them or some that do not. Additionally you will need a magnet to tell if there is really metal.
Explanation:
I'll give you a real answer later need points for test questions sorry!!!!!!
