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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.
What else can I help you with?
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.
How is the periodic table arranged in terms of their ato mic structures?
The periodic table is arranged based on the atomic number of the elements, which is the number of protons in the nucleus of an atom. Elements in the same column have similar chemical properties because they have the same number of valence electrons. The rows are called periods and the columns are called groups.
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.
How can you compare and contrast the periodic table that Mendeleev developed to the periodic table that Mosley organized?
Mendeleev used atomic masses to classify the element, where as Moseley classified the element in terms of atomic number, he suggested that chemical and physical properties are the functions of the atomic number Elements in the periodic table is classified as Metals, Nonmetal and Metalloids. Normally Group 1 to 12 are metals... Sayed Abdul Aziem Sayed_abd2007@hotmail.com
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.
How did mendeleev arrange his version of the periodic table?
Mendeleev arranged his version of the Periodic Table in terms of ascending atomic weights and similar properties. Since it was first published in 1869, there have been updates and improvements.
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.
Rank these elements in terms of decreasing atomic radius?
Y (biggest) Fe Ga S F (smallest)
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.
What trends can be noticed in the periodic table in terms of atomic radii?
The general trend is a decrease in size as you move from left to right . This is apparent in periods 2 and 3 but in period 4 and above we have the transition metals and these have some exceptions. This is due to the fact that as we moves from left to right along a period while the nuclear charge increases we are also adding extra electrons but the effective charge is mainly affected by the inner core electrons that "shield" the outer electrons. The effective nuclear charge, the charge felt by the outer electrons, increases across a period thus causing a contraction in the shell.
How is the periodic table arranged in terms of their ato mic structures?
The periodic table is arranged based on the atomic number of the elements, which is the number of protons in the nucleus of an atom. Elements in the same column have similar chemical properties because they have the same number of valence electrons. The rows are called periods and the columns are called groups.
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.
How can you compare and contrast the periodic table that Mendeleev developed to the periodic table that Mosley organized?
Mendeleev used atomic masses to classify the element, where as Moseley classified the element in terms of atomic number, he suggested that chemical and physical properties are the functions of the atomic number Elements in the periodic table is classified as Metals, Nonmetal and Metalloids. Normally Group 1 to 12 are metals... Sayed Abdul Aziem Sayed_abd2007@hotmail.com
Who is the inventor of the periodic table?
Dmitri Mendeleev is generally credited, as he was able to predict the properties of elements which had not yet been discovered based on 'gaps' in his table. He ordered the known elements in terms of their atomic mass in 1869; elements are listed in order of increasing atomic number in the modern version.
What are terms refer to the periodic table?
Group: a vertical column Period: an horizontal row
