The number of dots represents the amount of valence electrons, which is the same as the last digit of the elements group number in ptof.
Answer:
C
Explanation:
The airplanes speed would decrease
Answer:
magnesium
Explanation:
magnesium is in Group 2, in the periodic table. this means that it has 2 valence electrons. the less valence electrons an element or atom has, the more reactive. Selenium has 6 valence electrons. as a result, Mg is more reactive
