said that the wi had to do it in the afternoon to do so cute for a few minutes to do so I would say I love the axon the same way you 6AM
Cupric?
i’m not sure if this is 100% right!!
Answer:
A- beryllium
B- calcium
C- magnesium
Explanation
NOTE: all element in group 2 have 2 balance electrons
First let’s start with B- number of electrons= number of protons which is equal to the atomic number. therefore, the answer is calcium as it’s atomic number is 20
C- magnesium will have three energy levels considering it has 12 electrons (2,8,2).
A- beryllium is the lightest one in group 2 as it has the atomic mass of 9.0122.
A is may be the correct answer
Answer:
is there an answier choice u have to choose from or no
Explanation:
