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Elements in the same period of the Periodic Table have sequentially increasing numbers of protons.
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∙ 11y ago
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Why does the change for the atomic radii of the elements for period 3 from sodium to argon look similar to period 2?
Because the trend is the same. Atomic radius decreases from left to right across a period.
What trends in size are found among elements in the same period?
The atomic radius decrease from left to right.
What characteristics must two elements share if they are in the same period?
The same number of electron shells,thus similar atomic structure.
How atomic number better than atomic mass?
No two elements may have the same atomic number. But two elements may have same atomic mass. Hence atomic number is better than atomic mass.
Do elements in the same group have the same atomic mass?
No.
Elements across a series have same number of?
Elements across a series have the same number of atomic energy levels. An elemental series is better known as a period.
Why does the change for the atomic radii of the elements for period 3 from sodium to argon look similar to period 2?
Because the trend is the same. Atomic radius decreases from left to right across a period.
Why does the change for the atomic radii of elements in period 3 from sodium to argon look similar to period 2?
Because the trend is the same. Atomic radius decreases from left to right across a period.
What trends in size are found among elements in the same period?
The atomic radius decrease from left to right.
What characteristics must two elements share if they are in the same period?
The same number of electron shells,thus similar atomic structure.
What element has the same number of atomic shells as sodium?
All of the elements in the same period (row) of the periodic table as sodium have this property.
What characteristics is shared by elements in the same period?
Elements in the same period have the same number of electron shells, moving across a period (progressing group to group), elements gain electrons and protons and become less metallic. This arrangement reflects the periodic recurrence of similar properties as the atomic number increases.
How are period and group trends in atomic radii are related to electron configuration?
The atomic radius decreases along the elements across a period. Along a group, there is an increment in the atomic radius of corresponding elements.
What happens where two elements have the same atomic number?
No two different elements can have the same atomic number.
How atomic number better than atomic mass?
No two elements may have the same atomic number. But two elements may have same atomic mass. Hence atomic number is better than atomic mass.
Which other elements contain the same number of atomic shells as sodium written as the chemical symbols?
The elements of period 3 has same number of shells as sodium. These elements are Mg, Al , Si, P , S, Cl and Ar.
Do elements in the same group have the same atomic mass?
No.
