6(iv)
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information complete the following:
(a) ............... is the metallic element.
(b) Metal atoms tend to have a maximum of ............... electrons in the outermost shell.
(c) ............... is the reducing agent.
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(a) Y is the metallic element.
(b) Metal atoms tend to have a maximum of three electrons in the outermost shell.
(c) Y is the reducing agent.