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What are two generalizations that describe how the trends in atomic electronegativity vary with atom positions in the periodic table?
As you move from left to right across a period in the periodic table, atomic electronegativity generally increases, since elements are gaining more protons in the nucleus, which enhances their ability to attract electrons. In contrast, as you move down a group in the periodic table, atomic electronegativity generally decreases, as the size of the atoms increases and the outer electrons are farther from the nucleus, reducing the attraction for electrons.
What property increases going down a group in periodic table?
Atomic size increases going down a group in the periodic table. This is because additional energy levels are being filled with electrons, leading to an increase in distance between the nucleus and the outermost electron shell.
What best explains the observed trend in atomic radii going down periodic table?
The more energy levels that are occupied by electrons, the larger the atomic radius.
What trend is generally observed in electronegativity going across the periodic table from left to right?
From left to right and into the upper corner of the periodic table electronegativity increases. Fluorine is the most electronegative element, but the elements in group 18 generally have no electronegativity at all.
What property increases going down the periodic table?
The atomic radius increases going down the periodic table due to the addition of more electron shells around the nucleus, leading to increased shielding effect and weaker attraction between the electrons and the nucleus.
What explains the observed trend in the atomic radii going down the periodic table?
The more energy levels that are occupied by electrons, the larger the atomic radius.
How does the atomic mass size change as you move down the periodic table?
Atoms increase in size as you go down a column and are larger going from right to left across a row.because while going from left to right in a period electrons enter in the same orbit and hence the attraction between the nucleus increases ,,
How does density change by going down the periodic table?
As you go down the periodic table, the density generally increases. This is because the atomic mass and atomic size of elements increase as you move down a group, resulting in a greater mass packed into a larger volume. Exceptions can occur due to fluctuations in atomic structure or intermolecular forces.
How do elements change going down the periodic table?
Down a group, the atomic number generally increases, size increases, ionization energy decreases, reactivity increases.
What is the first metal in the periodic table?
The first metal in the periodic table is lithium, with atomic number 3.
What are two generalizations that describe how the trends in atomic electronegativity vary with atom positions in the periodic table?
As you move from left to right across a period in the periodic table, atomic electronegativity generally increases, since elements are gaining more protons in the nucleus, which enhances their ability to attract electrons. In contrast, as you move down a group in the periodic table, atomic electronegativity generally decreases, as the size of the atoms increases and the outer electrons are farther from the nucleus, reducing the attraction for electrons.
Why does the atomic size increase when going left to right on the periodic table?
Mostly because there is an increase in the number of electrons. As you add more electrons, there is a larger Coulombic force repelling the electrons away from each other, and this makes the electon "cloud", and therefore the atom larger.
What property increases going down a group in periodic table?
Atomic size increases going down a group in the periodic table. This is because additional energy levels are being filled with electrons, leading to an increase in distance between the nucleus and the outermost electron shell.
What trend is seen atom size going down the periodic table?
Excepting groups 5-12 of the periodic table.the atomic radius increase down in the group.
How does the atomic radius change from top to bottom in a group 1 and 2 in the periodic table?
Going down and to the left on the periodic table, atomic radius increases. Therefore, the smallest atomic radius is that of Helium (He), and the largest is that of Francium (Fr). Coincidentally, these are also the most and least reactive elements.
What is periodic table or periodic chart?
The periodic table or chart is a display of all chemical elements which are ordered by atomic number.the atomic number simply tells you how many electrons there are in the atom. It was created by Dmitri Mendeleev then helped change by Henry Moseley because Dmitri Mendeleev had ordered it in atomic mass. It is used to predict where chemical elements are going to be found and where.
What is the atomic radius of selenium if germanium's is 122 pm and arsenic's is 120 pm?
The atomic radius of selenium can be estimated to be approximately between 116 pm and 118 pm based on the trends in atomic radii going down a group in the periodic table. This is because atomic radius generally increases as you move down a group, so selenium's atomic radius would be smaller than arsenic's and germanium's.
