list four types of information that you can learn from the periodic table

Question

 list four types of information that you can learn from the periodic table

 

Answer 1

1) the element symbol, and thus name. For example, H is hydrogen, C is carbon and Fe is iron.

 

2) The atomic number, which is equal to the number of protons in the nucleus.

 

3) Since each proton has a +1 charge, you can also figure out the number of -1 electrons  in the neutral atom.

 

4) The atomic mass, in atomic mass units, which is an average of 1 or more isotopes of the element.  For example, hydrogen comes in three varieties: H-1, H-2, and H-3. Due to the fact that more than 99% of hydrogen is H-1, the atomic mass on the periodic table is 1.007 amu, very close to 1. For any isotope, the mass is a whole number, and is equal to the number of protons plus the number of neutrons in the nucleus.

 

The table is full of other important properties, like valence, electronegativity, and other fun things, once you learn the patterns!