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6. The following elements are nonmetal EXCEPT
a. chlorine
b. iron
C. calcium​


Sagot :

Answer:

b. iron

Explanation:

because chlorine and calcium are the non metal elements, while iron is a metal element

Answer:

C. CALCIUM

Explanation:

Because Calcium is an alkaline earth metal having atomic number 20. The metal is used in aluminium alloys for bearings. The metal is trimorphic, harder than sodium , but softer than aluminium .