petunia6548
05.09.2020 •
Chemistry
U
0 points
What is a change in matter that results in a change in its identity and
properties? *
chemical changa
chemical property:
combustability
O reactivity
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Ответ:
chemical change
Explanation:
i just took my ntest on it and aced it...
Ответ:
The elements in Group 2 (beryllium, magnesium, calcium, strontium, barium, and radium) are called the alkaline earth metals (see Figure below). These elements have two valence electrons, both of which reside in the outermost s sublevel. The general electron configuration of all alkaline earth metals is ns