Elements that are lined up horizontally on the periodic table are called
Elements that are lined up vertically on the periodic table are called
Nitrogen will chemically react just like what other element?
Elements in period 3 are all similar in that they all have
Elements in group 2, the alkaline earth metals, all are similar in that they
The elements in group 18 are called the noble gases because they don't react with other elements. A term that can be used to describe unreactive is
An element's chemical reactivity with other elements depends on that atom's
An element located in period 3, group 2 will have a Bohr model that shows
The element that has 3 rings and 6 valence electrons is
Which of the following is a noble gas?
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