It is a matter of how full an atom's outer or valence shell of electrons is. For most atoms, the most stable setup is one with a full shell of 8 valence electrons, and an atom will gain or lose electrons to achieve this. For atoms with close to 8 valence electrons, such a chlorine (7 valence electrons, it is generally easier to gain electrons and thus become negatively charged. For atoms with few valence electrons, such as sodium (1 valence electron), it is easier to lose electrons and go down to the next lowest shell, which is already full.
some elements like sodium have low electronegativity and elements like chlorine have high electronegativity. So when they react sodium lose electrons and form positive ions and chlorine gains electrons and form negative ions. This is the reason why some atoms make positive ions and some negative ions.
positive and negative ions form when electrons are transfered between atoms
Because they want to.
No, they loose negative charges. That means they become positive.
natural elements symbols
A positive ion and a negative ion. two oppositely charged ions
Atoms gain electrons to form negatively charged anions. Atoms lose electrons to form positively charged cations.
Arsenic atoms are neutral and they form ions with valency of three.
Atoms are the simplest form that an element exists. Ions are formed by adding or subtracting electrons by atoms. Atoms gain electrons to form negative ions (anions) and give electrons to form positive ions (cations).
when atoms share electrons, the positive nucleus of each atom is attracted to the shared negative electrons. the pull between the positive and negative charges is the force that keeps these atoms joined......hope this hepls :)
No, ions are atoms or groups of atoms that carry either a positive or negative electric charge, however, positive and negative ions attract one another to form ionic compounds, such as sodium chloride which consists of positive sodium (Na+) ions and negative chloride (Cl-) ions
The ratio of electrons (negative) to protons (positive.). An atom is nutruel in normal condition. It has positive proton and negative electron in a balanced form.when electrons emit from atoms than a positive charge form in atom. And vice versa.
Covalent bonds are formed when atoms share electrons and ionic bonds are formed when positive and negative ions bond to form an ionic compound
Ionic Compound:Is composed of negatively and positively charged atoms. The positive and negative atoms are attracted to each other and create a chemical bond. When the elements of a metal and a nonmetal are combined, they form an ionic compound. Ionic compounds are similar to magnets. There are positive and negative attractions. It is the same with atoms that has a positive or a negative charge is called an ion. Positive and negative ions attract each other. :3
Atoms of Metals lose electrons to empty their outer shell and become positive ions or cations.Atoms of non-metals gain electrons to fill their outer shell and become negative ions or anions.
It is ture. Covalent bonds are formed when atoms share electrons and ionic bonds are formed when positive and negative ions bond to form an ionic compound!!!
Yes, only if there are both ions with positive charges and ions with negative charges among the ionized atoms.
Sodium atoms lose electrons to become positive ions and iodine gains electrons to form negative ions.
ATOMS THAT ARE NONMETALS WILL FORM ANIONS (NEGATIVE IONS) IF GIVEN THE CHANCE WHEN ELECTRONS ARE AVAILABLE FROM THE FORMATION OF CATIONS (POSITIVE IONS).THE ELECTRONS NEED A HOME, EITHER WITH THEIR ORIGINAL ATOMS, OR IF CATIONS FORM, THEN WITH ANIONS THAT MUST FORM AT THE SAME TIME.CHARGE MUST BE CONSERVED IN ANY CHEMICAL OR PHYSICAL CHANGE.A negative ion is formed when an atom gains an electron, (because electrons have a negative charge).
The simplist one that I can think of right away is water, which can form the negative hydroxide ion OH- or the positive hydronium ion H3O+.
No, metals do not form negative ions: Only non-metals form negative ions - this ability (to gain electrons) is intrinsic to the nature of non-metals. Only metals form positive ions - this ability (to lose electrons) is intrinsic to the nature of metals. A positive ion (cation) is formed by removing electron(s) from an atom or group of atoms. A negative ion (anion) is formed by gaining electron(s) an atom or group of atoms.
The element that lost electrons become more positive because the electrons are negative.