if the atom is an element from groups 1, 2, or 13, the atom has to give up electrons to make it have 8. For example, if you have Boron in group 13, it has 3 valence electrons, making it more likely to give up electrons than gain them. If you take 3 electrons from Boron, you get Helium. Helium is the noble-gas for Boron. B(+3) has a noble-gas configuration of He.
if the atom is an element from groups 15, 16, or 17, the atom has to gain electrons to make it have 8. For example, if you have Oxygen with 6 valence electrons, it is more likely to gain electrons than lose them. If 2 electrons are added to Oxygen the noble-gas configuration becomes Neon. O(-2) has a noble-gas configuration of Ne.
if the atom is an element in group 14, it can either gain or lose electrons. so the noble gas configuration could be the 4 electrons less or 4 electrons more than it. For example, if you add 4 electrons to Carbon you get Neon but if you take away 4 electrons you get Helium.
Krypton is a noble gas and already has noble gas configuration.
They achieve noble gas configuration by the sharing of electrons.
Chemical properties depend on electron configuration. By either gaining or losing electrons, an atom changes its electron configuration and therefore its chemical properties also change.The atoms of an element will react to achieve a noble-gas configuration. The atoms will either gain or lose electrons to achieve such a configuration.
Iodine accepts one electron to achieve noble gas configuration. Strontium loses two electrons to achieve noble gas configuration. Nitrogen accepts three electrons to achieve noble gas configuration. Krypton already has a noble gas configuration.
They usually achieve "Noble Gas" configuration
Krypton is a noble gas and already has noble gas configuration.
They achieve noble gas configuration by the sharing of electrons.
The atoms of the molecule effectively achieve a noble gas configuration by sharing valence electrons.
They achieve the electron configuration of a noble gas.
Chemical properties depend on electron configuration. By either gaining or losing electrons, an atom changes its electron configuration and therefore its chemical properties also change.The atoms of an element will react to achieve a noble-gas configuration. The atoms will either gain or lose electrons to achieve such a configuration.
They usually achieve "Noble Gas" configuration
Iodine accepts one electron to achieve noble gas configuration. Strontium loses two electrons to achieve noble gas configuration. Nitrogen accepts three electrons to achieve noble gas configuration. Krypton already has a noble gas configuration.
They usually achieve "Noble Gas" configuration
It is called the octet rule.
Sulfur atoms will gain two electrons in order to achieve a noble gas electron configuration. A sulfide ion has the formula S2-.
Atoms lose or gain or share electrons and tend to attain noble gas configuration
Krypton is already a noble gas and hence need not gain noble gas configuration.