Answer:
When observing how thallium reacts with the air of the earth's atmosphere, its hardness or resistance resembled sodium, it was not investigated further to classify it correctly
Explanation:
Now it is known that they contain different numbers of valence electrons and that thallium is a heavy metal like lead and that they have similar characteristics except for their melting point where thallium is higher.
Answer:
2.4 mol x 22.4 liter = 53.76 liters
1 mole
Explanation:
Which fractions are equivalent to 0.875?
Answer:
No. of electrons of the element
