A chlorine atom becomes a chloride ion when it gains an electron from a metal atom, such as sodium.
When a chlorine atom gains an electron in to its outer most energy shell ( reduction) it becomes the chloride anion. Cl(g) + e^- = Cl^-(g)
The sodium atom becomes a sodium cation, and the chlorine atom becomes a chloride anion.
Salt dissolves in water. Here's a rather complicated explanation of why this happens: Salt is made when a sodium atom loses one electron, and the electron moves to a chloride atom. When this happens, the sodium atom becomes positively charged and the chloride atom becomes negatively charged. Positive and negative atoms attract each other, so the sodium and the chloride are attracted and form an ion called sodium chloride (otherwise known as salt). Water molecules are made of two hydrogen atoms and one oxygen atom. The electrons in the molecule tend to spend more time around the oxygen atom. This gives the oxygen atom in the molecule a slightly negative charge (and the hydrogen atoms slightly positive charges). When you put salt in water, the ionic bond between the positive sodium and the negative chloride breaks. The positive sodium atom is pulled to the negative end of the water molecules, and the negative chloride atom is pulled to the positive end of the water molecule.
An example is what we call a salt - say solid crystalline sodium chloride - dissolved in water it becomes both types of ions: the sodium atom becomes a positively charged atom / ion while the chlorine atom becomes a negatively charged atom / ion.
The compound name for NiCl2 is Nickel Chloride. It is comprised of one atom of Ni, Nickel, and two atoms of Chlorine which becomes a Chloride.
It becomes a negative ion.
calcium
When it gains an electron. It then becomes a negative ion.
When a chlorine atom gains an electron in to its outer most energy shell ( reduction) it becomes the chloride anion. Cl(g) + e^- = Cl^-(g)
The sodium atom becomes a sodium cation, and the chlorine atom becomes a chloride anion.
The atom that gains electron becomes an anion. The atom that loses electron becomes a cation.
If an atom loosed electrons then it becomes an ion. The electrical charge in the atom becomes a positive ion.
it becomes happy!
Salt dissolves in water. Here's a rather complicated explanation of why this happens: Salt is made when a sodium atom loses one electron, and the electron moves to a chloride atom. When this happens, the sodium atom becomes positively charged and the chloride atom becomes negatively charged. Positive and negative atoms attract each other, so the sodium and the chloride are attracted and form an ion called sodium chloride (otherwise known as salt). Water molecules are made of two hydrogen atoms and one oxygen atom. The electrons in the molecule tend to spend more time around the oxygen atom. This gives the oxygen atom in the molecule a slightly negative charge (and the hydrogen atoms slightly positive charges). When you put salt in water, the ionic bond between the positive sodium and the negative chloride breaks. The positive sodium atom is pulled to the negative end of the water molecules, and the negative chloride atom is pulled to the positive end of the water molecule.
The sodium atom gives an electron to the chlorine atom to make the sodium and chloride ions respectively. Then they form ionic bonds forming sodium chloride.
No! Electrons are negatively charged. A neutral atom gaining a electron will, by necessity, become negatively charged. Cl(-)
An example is what we call a salt - say solid crystalline sodium chloride - dissolved in water it becomes both types of ions: the sodium atom becomes a positively charged atom / ion while the chlorine atom becomes a negatively charged atom / ion.