Answer:
1. earth metal 2. halogen 3.The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. ... Elements in the periodic table are organized according to their properties.
Inventor: Dmitri Mendeleev please name most brainliest
 
        
                    
             
        
        
        
Convert mols to grams by multiplying grams of tin by the number of mols. 
There are 119 grams per mol
119 x 11.8 = 1404 grams
        
             
        
        
        
An example of an atom that has no charge is one that has a. 2 protons, 2 electrons, and 1 neutron.
To be neutral an atom must have the <em>same number</em> of protons (+) and electrons (-).
Only then will the <em>charges cancel</em> and give a neutral atom.
 
        
             
        
        
        
B! because the hydrogen causes some nuclear reactions.