public ElementViewModel(Element element)
     : base()
 {
     _atomicNumber = element.AtomicNumber;
     _name = element.Name;
     _symbol = element.Symbol;
 }
 private bool IsPossible(string word, Element elem)
 {
     return word.Length >= elem.Symbol.Length &&
         word.Substring(0, elem.Symbol.Length).ToUpper().Contains(elem.Symbol.ToUpper());
 }