Answer:
C. Switch 4 and 5
Explanation:
just took the test on edge 2020 & got a 100%
Answer:
The physical and chemical properties of elements are periodic function of their atomic weights. This is Mendeleev's periodic law.
63 elements were classified by Mendeleev.
plz mark brainliest✌️✌️
Create and use more electricity then previously used before. A lot of power is created by burning fossil fuels, the burning of them will be increased so more is needed to give power to everyone.
I think it's fertilisation (^^)
Answer:
sodium
Explanation:
sodium is the second most reactive. Magnesium being the least reactive
