Answer: left
Explanation: The element that appears farthest to the
✔ left
is written first in the chemical name of a covalent compound.
Fireworks changes chemical energy into light energy
Answer:
Element 2
Explanation:
If we look at the model stated for element 1, it is clear that element 1 must be a noble gas. It has eight electrons in its outermost shell this implies that it has already attained a complete octet of electrons and is reluctant towards chemical reaction.
The second element belongs to group 16 since it has six electrons on its outermost shell. It is certainly more reactive than element 1 which is a noble gas.
