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Why do both atomic size and ionic size increase as you move down a group?
Both atomic size and ionic size increase as you move down a group because the number of electron shells or energy levels increases, leading to a larger distance between the nucleus and the outermost electrons. This results in a larger atomic and ionic size.
What is the periodic trend for atomic size from top to bottom in a group?
Atomic size generally increases from top to bottom within a group on the periodic table. This is because each successive element has an additional energy level of electrons, leading to increased electron-electron repulsion and an overall increase in atomic size.
What is the symbol and atomic number of the only metallic chalcogen in group 6 A is?
The symbol of the only metallic chalcogen in group 6A is polonium, with the atomic number 84. It is located below selenium and shares properties with both metals and nonmetals.
Why does the atomic radius usually increase with the increase in atomic numbers within a group?
the number of energy levels increases
Why is the electronegativity of silicon equal that of germanium?
Both silicon and germanium are in the same group on the periodic table, Group 14, which influences their similar electronegativities. They both have four valence electrons and belong to the same period, resulting in similar atomic structures that contribute to their equal electronegativities. Their electronegativities are also influenced by their atomic size, which is comparable due to being in the same group and period.
What is the trend in atomic mass going down a group?
The atomic mass will increase. As you go down a group in the periodic table the atomic number rises, this increase in the number of protons is accompanied by an increase in the number of neutrons to stabilise the nucleus, and both together lead to an increase in atomic mass.
Why do both and atomic size and ionic size increase as you move down a group?
Both trends hold for both positive and negative ions.
Why do both atomic size and ionic size increase as you move down a group?
Both atomic size and ionic size increase as you move down a group because the number of electron shells or energy levels increases, leading to a larger distance between the nucleus and the outermost electrons. This results in a larger atomic and ionic size.
What is the periodic trend for atomic size from top to bottom in a group?
Atomic size generally increases from top to bottom within a group on the periodic table. This is because each successive element has an additional energy level of electrons, leading to increased electron-electron repulsion and an overall increase in atomic size.
What are the is the atomic numbers of la and ac on the periodic table?
La has atomic number 57.Ac has atomic number 89.They both are first elements of lanthanoids and actinoids group respectively.
What trends do you notice about the atomic number and atomic mass as you move left to right across the table?
they increase by one going from left to right totally a guess
How does bromines atomic radius compared to arsenic?
Bromine has a larger atomic radius than arsenic. This is because as you move down a group on the periodic table, atomic radius generally increases due to the addition of more electron shells. Bromine is in group 17, while arsenic is in group 15 on the periodic table.
What is the symbol and atomic number of the only metallic chalcogen in group 6 A is?
The symbol of the only metallic chalcogen in group 6A is polonium, with the atomic number 84. It is located below selenium and shares properties with both metals and nonmetals.
What did the Atomic Energy Act of 1946 do?
The Atomic Energy Act of 1946 created a group called the Atomic Energy Committee. The AEC essentially overlooked and controlled nuclear development in both commercial and military organizations.
Would the trend in atomic size cause an increase or a decrease in the attraction between the nucleus and the valence electron within the group as the atomic number increases?
Atomic size increases from top to bottom in a group due to increase in theshieldingeffect.As you go down the group shielding from core electrons increases (as more core electrons are added), therefore valence electrons experience weaker attraction forces from the nucleus and are located further away from it, resulting in an increase in size.If you move across a period the attraction between the nucleus and valence electrons increases because the number of protons and the number of valence electrons both go up whereas the number of core electrons stays the same (shielding decreases). In this case the size decreases.
Why does the atomic radius usually increase with the increase in atomic numbers within a group?
the number of energy levels increases
Why is the electronegativity of silicon equal that of germanium?
Both silicon and germanium are in the same group on the periodic table, Group 14, which influences their similar electronegativities. They both have four valence electrons and belong to the same period, resulting in similar atomic structures that contribute to their equal electronegativities. Their electronegativities are also influenced by their atomic size, which is comparable due to being in the same group and period.
