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What do forces have to do with atomic radius of alkali metals?

Forces have an indirect impact on the atomic radius of alkali metals. As you move down a group of alkali metals in the periodic table, the atomic radius typically increases due to increased electron shells. The forces between the electrons and nucleus (electrostatic forces) contribute to the overall size of the atom in terms of atomic radius.


Rank these elements in terms of increasing atomic radius?

In terms of atomic radius, the sequence would be oxygen, carbon (both period 2), magnesium (period 3), rubidium (period 4), and cesium (period 5). Note that order by periods is not absolute: in each period, the elements toward the far left side have the largest radii. For example, the radius for lithium in period 2 is larger than almost all of the elements in periods 3 and 4. *Numerically, the elements O, C, Mg, Rb, and Cs have respective radii of about 60, 70, 150, 235, and 260 picometers.


How are elements identified in terms of their atoms?

Elements are identified based on the number of protons in their atoms, which is known as the atomic number. Each element has a unique atomic number, allowing scientists to distinguish between different elements.


What is the largest alkaline earth metal Atom?

Barium is the largest alkaline earth metal atom in terms of atomic radius.


What are the three pairs of elements that are out of order in the periodic table in terms of their atomic masses. Why it is necessary to invert their order in the table?

The three pairs of elements that are out of order in terms of their atomic masses are iodine and tellurium, cobalt and nickel, and uranium and neptunium. It is necessary to invert their order in the table to maintain the order of increasing atomic masses within each group or period, ensuring that elements with consecutive atomic numbers also have consecutive atomic masses.


What are terms refer to the periodic table?

Group: a vertical column Period: an horizontal row


Does the atomic radius increase as you go from left to right because principal energy levels are added?

It is not possible to give a sensible answer to this question because, in terms of the Periodic Table, the atomic radius DECREASES as you go from left to right! So the given reason would act in opposition to reality.


Is a sodium atom is larger than a silicon atom?

No, a silicon atom is larger than a sodium atom. This is because silicon has more electrons and protons than sodium, leading to a larger atomic radius.


What would the size of an atom be described in?

The size of an atom is typically described in terms of its atomic radius, which is the distance from the nucleus to the outermost electron cloud. This radius is usually on the order of 0.1 nanometers (1 Ångstrom) for most atoms.


What is diameter in terms of radius?

diameter = 2 x radius


What is elements in terms of science?

In science, elements are substances that consist of only one type of atom. Each element is characterized by its unique number of protons, known as the atomic number. Elements are listed on the periodic table.


What are two common terms for decreasing velocity?

deacceleration