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How does the number of separate electrons shown for the group 1 metals compared to the number of atoms?
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Do metals prefer to receive electrons in chemical reactions?
Yes. Metals lose their valence electrons to form cations, or positive ions. Once they lose electrons, the number of protons in their nuclei outnumber the electrons, hence the positive charge.
What is the difference of number of valence electrons and periodic table group number?
Valence electrons and group number for metal are same. For non-metals, valence electrons are equal to group number-10.
Do transition have higher melting point than alkaline and alkali metals?
Yes, transition metals generally have higher melting points compared to alkaline and alkali metals. This is because transition metals have a greater number of valence electrons and a stronger metallic bond, which requires more energy to break and transition from solid to liquid. In contrast, alkaline and alkali metals have fewer valence electrons and weaker metallic bonds, resulting in lower melting points.
Is an ion a class on the periodic table?
No. The three classes of the periodic table are metals, semi metals and non metals. Ions are atoms that are missing one or more electrons, resulting in a net charge. This is because the number of protons (+) no longer equals the number of electrons (-).
Do the tranistion metals gain or lose electrons?
Most of them usually lose electrons because they usually have a +(insert number) as their charge.
Why metals good electrical conductors?
In their regular (lattice) structure, metals have a sea of free electrons. This allows the electrons to flow through the metal at will and this is what makes metals good conductors of electricity (and heat).Their mobile electrons
Do metals prefer to receive electrons in chemical reactions?
Yes. Metals lose their valence electrons to form cations, or positive ions. Once they lose electrons, the number of protons in their nuclei outnumber the electrons, hence the positive charge.
What is the number of valence electrons for group 2 elements?
Group 2 metals have 2 valence electrons. In fact, the number of valence electrons of elements can be deduced from the group number (e.g. group VII elements have 7 valence electrons).
What is the difference of number of valence electrons and periodic table group number?
Valence electrons and group number for metal are same. For non-metals, valence electrons are equal to group number-10.
Why are metals better conductors than ceramics?
Metals are better conductors than ceramics because they have a large number of loose electrons. Electricity has loose electrons.
Do transition have higher melting point than alkaline and alkali metals?
Yes, transition metals generally have higher melting points compared to alkaline and alkali metals. This is because transition metals have a greater number of valence electrons and a stronger metallic bond, which requires more energy to break and transition from solid to liquid. In contrast, alkaline and alkali metals have fewer valence electrons and weaker metallic bonds, resulting in lower melting points.
Why do metals always impart their characteristic colors to a flame?
The defining characteristic of metals, in a chemical sense, is that they have between one and three valance electrons and they tend to lose electrons, as compared to non metals which have a larger number of valance electrons and are much less prone to losing them. So, when a metal is heated sufficiently, outer electrons get hot enough to leave the atom. Then, electrons are recaptured. In the process of becoming part of an atom again, an electron emits a photon, with a typical wavelength for a given element, thereby creating a characteristic color. As a result of this process, the color of a flame is mainly due to whatever metals are present.
Is an ion a class on the periodic table?
No. The three classes of the periodic table are metals, semi metals and non metals. Ions are atoms that are missing one or more electrons, resulting in a net charge. This is because the number of protons (+) no longer equals the number of electrons (-).
How does the number of separate electrons shown for the group 2 metal atoms compare to the number of atoms?
The number of electrons in a neutral atom is equal to the atomic number.
Do the tranistion metals gain or lose electrons?
Most of them usually lose electrons because they usually have a +(insert number) as their charge.
How many valence electrons are in aluminum?
Alkaline earth metals are group 2 elements and have 2 valence electrons.
Why do nonmetals have a negative oxidation number?
non metals accept electrons. Hence they show a negative oxidation number (negative denotes that the element accepts electrons)
