An element is shiny, conducts heat and electricity, and has 2 valence electrons. Which element could this be? a.Na b.Fe

Question

An element is shiny, conducts heat and electricity, and has 2 valence electrons. Which element could this be?
a.Na
b.Fe
c.O
d.Ca

in progress 0
Gia Bảo 4 years 2021-08-22T20:51:52+00:00 1 Answers 20 views 0

Answers ( )

  1. nguyetanh
    0
    2021-08-22T20:53:39+00:00
    Reply

    the answer is calcium

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )