Answer:
los metales alcalinotérreos: berilio (Be), magnesio (Mg), calcio (Ca), estroncio (Sr), bario (Ba) y radio (Ra).
o simplemente llamado grupo 2A
Explanation:
The sand to pass through, but not the gravel. Hope this helps!
Answer:
Carbon is a solid non-metal element. Carbon has eight valence electrons.
Explanation:
hope this helps!
independent variable is being controlled and the dependent variable is being tested and being easured in a scientific experiment