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Which of the representative elements in period 4 has 3 valence electrons?
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∙ 10y ago
scandium
Wiki User
∙ 10y ago
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How does the number of valence electrons for element change across a period?
The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).
How does the numbers of electrons change across a period of elements?
The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).
Why do the elements in the vertical columns all have the same chemical properties?
Group 1 have one valence electron. The elements in Group 2 have two. The elements in Group 17 have seven valence electrons, and Group 18 elements have eight. Because the valence electrons within a family are the same, the elements in that group have similar properties.
How can period number related to the location of valence electrons?
The period number is the same as the energy level containing the valence electrons. For example, in period 4, the valence electrons are the 4s and 4p electrons.
Why do the elements in a group of the period table have similar properties?
Elements in the same group have same number of valence electrons and hence have similar chemical and physical properties.
Elements that have the same number of valence electrons are?
All elements in the same group have the same number of valence electrons.
What is the representative element in Period 4 with three valence electrons?
Al
How does the number of valence electrons for elements across a period?
The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).
What is the difference between the representative elements and the transition elements?
The elements in group 1 and 2 are the representative elements. Groups 3 through 12 are the transition elements. Transition elements are all metals and are found less noticably than they do across a period of representative elements. representative elements are always found in nature combined with other elements, they are all metals except for hydrogen.
What is the representative element in period 4 with six valence electrons?
chromium (Cr)
How does the number of valence electrons for element change across a period?
The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).
How are families within the periodic table similar?
Elements within the same period have the their valence electrons in the same principle energy level. For example, those elements in period 2, have their valence electrons in the 2nd energy level.
How does the numbers of electrons change across a period of elements?
The number of valence electrons for the elements increases across a period, from 1 (group 1) to 8 (group 18).
Elements in the same are similar due to similarities in their number of valence electrons?
Families or _GROUPS_ of elements are similar due to similarities in their number of valence electrons.Answer:
Which period 5 element has 5 valence electrons?
Antimony (Sb, # 51) has 5 valence electrons (and so do all the other elements in that group.)
What do the elements in the periodic table in the same period have in common?
Their valence electrons are in the same energy level.
As you move across a period elements have the same number of?
Electron shells
