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How do the valence electrons tell about the reactions of different elements?
Wiki User
∙ 12y ago
Not sure if I understand your question correctly, but some elements are more electronegative than others, so they draw in electrons better than others. For example, in NaCl, chlorine (Cl) is much more electronegative than sodium (Na) so it simply takes the sodium's extra valence electron.
Wiki User
∙ 12y ago
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What best describes a valence electrons?
Valence electrons are the electrons involved in chemical reactions.
How are the element within a row different?
They have different numbers of valence electrons.
How many valence electrons can an atom have?
That depends on the element in question. Atoms can have anywhere from 1 to 8 valence electrons. For the main group elements, Groups 1,2,13-18, the number of valence electrons are the number in the one's place in their group number, as follows: Group 1 Elements: 1 valence electron Group 2 Elements: 2 valence electrons Group 13 Elements: 3 valence electrons Group 14 Elements: 4 valence electrons Group 15 Elements: 5 valence electrons Group 16 Elements: 6 valence electrons Group 17 Elements: 7 valence electrons Group 18 Elements: 8 valence electrons The transition metals, Groups 3 - 12, are more complicated because they are adding d electrons, some of which behave like valence electrons, and many transition metals can have different numbers of valence electrons. For example manganese can have anywhere from 2 to 7 valence electrons.
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).
Which electrons are involved in normal chemical reactions?
The valence electrons.
What do the chemical reactions of elements depend on?
Valence electrons.
What is the different about the valence electrons for all elements in a group?
The valence electrons for elements in the same group stay the same, since the number of valence electrons corresponds to the group number.
How are the elements within row different?
They have different numbers of valence electrons.
What are the uses of valence electrons?
Valence electrons are important for the chemical reactions.
Do each of the elements in Group 1 have the same or different numbers of electrons?
The Elements have a different Total Number of Electrons, but the same number of Valence Electrons.
What best describes a valence electrons?
Valence electrons are the electrons involved in chemical reactions.
What describes a valence electron?
Valence electrons are the electrons involved in chemical reactions.
What electrons of an element are responsible for reacting and bonding with other elements?
The "valence" electrons are responsible for chemical reactions and bonding. Valence electrons are found in the outer most orbital of the atom, farthest away from the nucleus.
How many valence electrons do transitions elements have?
How many valence electrons do transition elements have?
How are the element within a row different?
They have different numbers of valence electrons.
The elements within a group have a similar number of?
Elements in the same group have the same number of valence electrons. These are the outer-shell electrons that react with other elements.
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).
