which substance is an element?\nnacl\nmg\nkbr\nch4
which substance is an element?\nnacl\nmg\nkbr\nch4
Answer
Brief Explanations:
An element is a pure substance made of only one kind of atom. NaCl is sodium - chloride (a compound of sodium and chlorine), KBr is potassium - bromide (a compound of potassium and bromine), and CH4 is methane (a compound of carbon and hydrogen). Mg (magnesium) is an element as it consists of only magnesium atoms.
Answer:
Mg