def __init__(self, parent=None, name='Element', value=None):
    super().__init__(parent=parent, name=name)
    self.symbol = None
    self.charge = None
    self.value = value
def __init__(self, parent=None, name='Element', value=None):
    super().__init__(parent=parent, name=name)
    self.symbol = None
    self.charge = None
    self.value = value