Answer:
Sodium
Explanation:
Its neighbor to the bottom (sodium) has similar properties to lithium. Group trends are very strong for the Group 1 (alkali) and Group 2 (alkaline earths) metals. Group 1 elements behave very similarly to each other.
She ran at either 5m/s
Or 11.185 miles/hr
Explanation:
Aight well if she did 100m in 20s then that’s 5m/s which would also be 11.185M/h
m = meters
M = miles
Hope this helps!
Elements are arranged by their atomic number, which is also the number of protons they have.
The answer is D
Calcium has two electrons in its outer energy shell
