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wen temp increase than thermal vibrations of lattice ion also increase and collision between electron and lattice ion increase ,due to which resistance rise
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∙ 10y ago
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∙ 12y agobecause they feel like it
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Why metals form positive and nonmetal form negative ion?
metals form positive ion because they always lose electrons and after losing electron they have excess of positive charge and have deficiency of electrons.another reason is that metals have more than 3 valence electrons and have low ionization energy
What type ions do metals form?
The type of ions that metals form are called positively charged ions. The scientific name for positively charged ions is cations.
How do the alkali metals differ from the alkaline earth metals?
alkali metals have one valence electron, whereas alkaline earth metals have two valence electrons.
What is the number of valence electrons for Alkali Earth Metals?
Alkali Earth metals have a single valence electron, and are found in the first group.
Elements that have one valence electron tend to?
An element that has one valence electron tends to be more reactive, is able to form ions, and can become charged When an element has all eight valence electrons, they are more stable.
Do metals have positive valence numbers?
Yes, they do.
What charges do the metals achieve after they form ions?
The charge on the metals depends on their configuration.Metal with one valence electron donate it and acquire one positive charge.
Why metals form positive and nonmetal form negative ion?
metals form positive ion because they always lose electrons and after losing electron they have excess of positive charge and have deficiency of electrons.another reason is that metals have more than 3 valence electrons and have low ionization energy
What types of atoms form positive ions?
atoms that belong to a metal element....because metals always loose electrons and gain a positive charge..!
How many valence electron does alkali metals have?
Alkali metals have one valence electron.
What metals react with other metals what happens to the valence electrons of the metal atoms?
== == When metals react with other elements, the atoms of the metals give up their valence electrons.
Alkali metals are extremely reactive because?
because they have one valence electron that is easily removed to form a positive ion.
Do alkali metals contain 7 valence electrons?
No. Alkali metals have one valence electrons. Halogens have 7 valence electrons.
Are metals positive or negative ions?
Metals are positive ions. Everything on the left side of the periodic table is. Basically every element that has 4 valence electrons or less is a positive ion.
What type ions do metals form?
The type of ions that metals form are called positively charged ions. The scientific name for positively charged ions is cations.
How do the alkali metals differ from the alkaline earth metals?
alkali metals have one valence electron, whereas alkaline earth metals have two valence electrons.
Why do metals tend to lose electrons form positive ions?
Metals tend to lose electrons to form positive ions because, for metals to gain a full outer shell, they need to lose electrons.
