we make use of tungsten metal to design electron gun.
No. All the alkaline earth metals have 2 valence electrons, meaning they have two electrons in the outermost shells. No two alkaline earth metals have the same number of electron shells. Beryllium is the only one with two shells.
All alkali metals, alkaline earth metals, and halogens have a common valence electron configuration: alkali metals have 1 valence electron, alkaline earth metals have 2 valence electrons, and halogens have 7 valence electrons. This shared electron configuration influences their chemical properties, such as reactivity and bonding tendencies.
gaining an electron
Metals become positively charged ions after they accept electrons. This process occurs during chemical reactions where metals lose electrons to achieve a stable electron configuration.
Monovalent metals are metals that can form ions with a charge of +1. Examples of monovalent metals include lithium (Li), sodium (Na), and potassium (K). These metals typically lose one electron to achieve a stable electron configuration.
Aluminum- milled or cast.
Various metals and wood
Alkali metals have one valence electron.
Highly reactive metals with one valence electron are known as Alkali metals.
Highly reactive metals with one valence electron are known as Alkali metals.
Alkaline metals
Yes. Non metals have larger electron affinity than metals as non metals accept electrons more easily than metals.
Alkali metals have 1 electron in their outer shell.
The oute (valence) shell of the alkali metals contains just one electron
No. All the alkaline earth metals have 2 valence electrons, meaning they have two electrons in the outermost shells. No two alkaline earth metals have the same number of electron shells. Beryllium is the only one with two shells.
Electrons in metals are delocalized and in a free movement.
alkali metals