Elements in the d block can have different stable oxidation numbers. So they can make cations with different charges.
Elements of group 1 readily form ions having a charge of +1.
The group 2 elements form ions with a 2+ charge. For example, Mg2+ and Ca2+. The group 16 elements form ions with a 2- charge. For example, O2- and S2-.
a negative charge
The elements that lose electrons and form positive ions are called metals. They will lose the electrons from their highest levels of energy to gain a more positive charge and form positive ions.
Any member of the alkali metals group, such as; Lithium, Sodium, Potassium etc.
lose 2 electrons and form ions with a 2+ charge.
The charge of group 7A elements when forming ions is -1 (negative 1).
When group 1A elements form ions, they form cations with a +1 charge.
Group 1 elements are the alkali metals, which form ions wih a 1+ charge.
Elements of group 1 readily form ions having a charge of +1.
The group 2 elements form ions with a 2+ charge. For example, Mg2+ and Ca2+. The group 16 elements form ions with a 2- charge. For example, O2- and S2-.
Transition elements are the major group of elements with this property.
The elements that lose electrons and form positive ions are called metals. They will lose the electrons from their highest levels of energy to gain a more positive charge and form positive ions.
cations = positively charged ions
no
a negative charge
Group that tend to form -1 ions include group VIIA