Answer:
an be found by determining the electronic configurations of elements. Thereafter the number of electrons in the outermost shell gives the total number of valence electrons in that element.
I believe it is useful as it shows how electrons are distributed in the shells (energy levels) of an iron atom. An atom is the smallest particle of an element that can take part in a chemical reaction. It contains the nucleus and the shells (energy levels). the nucleus contains protons and neutrons while the shells contain electrons.
C, because liquids as gas can move on there own at different points but solids are locked in place and do not move past one another like liquids and gases do.
Answer:
B. 7cm
Explanation:
Double the structure means 3.5+3.5 OR 3.5 ×2
Which is 7 cm
