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Elements in the same period of the Periodic Table have sequentially increasing numbers of protons.

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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 is the atomic radius of manganese and how does it compare to other elements in the periodic table?

The atomic radius of manganese is about 127 picometers. In the periodic table, manganese has a smaller atomic radius compared to elements in the same period but larger than elements in the same group.


Elements across a series have same number of?

Elements across a series have the same number of attributes or characteristics.


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 characteristics must two elements share if they are in the same period?

Elements in the same period share the same number of electron shells. This means they have similar atomic sizes and properties because they have the same number of electron shells determining their size and behavior.


What trends in size are found among elements in the same period?

The atomic radius decrease from left to right.


What characteristics is shared by elements in the same period?

Elements in the same period share the same number of electron shells, or energy levels. This means they have similar atomic sizes and exhibit similar chemical properties due to their outermost electron configuration.


Why does the change for the atomic radii of elements in period 3 from sodium to argon look similar to period 2?

The atomic radii of elements in period 3 from sodium to argon decrease due to a greater nuclear charge pulling electrons closer to the nucleus. This trend is similar to period 2 because both periods follow the same pattern of increasing nuclear charge as you move across the period, leading to a similar decrease in atomic radii.


Are elements in a period arranged alphabetically?

NO!!! Elements in a Period are arranged by Atomic No. / Proton No. If we take PERIOD 1. . the two elements are Hydrogen and Helium, in that order. H**ydrogen , Hel**ium are NOT in alphabetical order.


How do elements in a period behave?

Elements in a period share the same number of electron shells, leading to similar chemical behaviors. As you move across a period from left to right, the atomic number and number of protons increase, leading to a gradual increase in electronegativity, ionization energy, and atomic size. Elements at the beginning of a period tend to be metals, while those at the end are nonmetals.


The elements in each____ have the same number of?

all the nuclei of all atoms belonging to one element will have the same atomic number, they may not necessarily have the same mass number


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.