A mile.
For reference, it's about 1,607 or so meters, and 1km is 1,000.
Answer:
D, They produce fossil fuels
Explanation:
you can't just pull them out of nowhere
It’s a combustion reaction but what are you trying to find?
a) Group 2 elements have 2 electrons on their outer shell, so they form a 2+ charge.
b) they lose 2 electrons as they are transferred to the non metal.
c)They obtain this charge as when they are made into an ionic compound the 2 electrons on the outer shell are transferred to the non metal, meaning there are 2 more protons that electrons, giving it a positive charge.
hope this helps! :)
Elements in the same group have similar properties
