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Explain why atomic radius generally decreases as you go left to right across a row on the periodic table?
As you move from left to right across the Periodic Table, the number of protons in the nucleus of each successive atom increases by one. Correspondingly, the number of electrons also increases by one. However, if the elements in question are on the same energy level, the added ''pull" of the protons serves to pull the orbiting electrons closer to the nucleus, thus causing the radius of the atom to become smalller as you move from left to right. As you move down the Periodic Table, atoms get larger. As you move down the table, you continue to add protons and electrons. However, you also add energy levels and, in so doing, the orbiting (and available) electrons get further from the nucleus and the pull of the protons. It is the distance between protons and available electrons that allows the radius of the atoms to get larger. It also explains why reactivity increases as you go down the table. The pull of protons on the available electrons of small atoms is much greater than the pull of protons on the available electrons of large atoms, so the large atoms release their electrons much more readily.
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How does electronegative change going down and across the periodic table?
Electronegativity generally decreases as you go down a group on the periodic table due to the increasing distance between the nucleus and valence electrons, reducing the attractive force. Across a period, electronegativity generally increases due to the increasing nuclear charge, pulling valence electrons closer and increasing their attraction.
How does Electronegativity trend across the periodic table?
Electronegativity generally increases from left to right across a period and decreases down a group in the periodic table. This trend occurs because elements on the right side of the periodic table have a greater ability to attract electrons due to increased nuclear charge and effective nuclear charge.
How does an element's electronegativity relate to its position on the periodic table?
Electronegativity generally increases as you move from left to right across a period on the periodic table, and decreases as you move down a group. This trend occurs because elements closer to fluorine (the most electronegative element) on the periodic table have higher electronegativities.
How does electronegativity increase or decrease in modern periodic table?
Electronegativity generally increases as you move from left to right across a period in the modern periodic table due to increasing nuclear charge and a stronger pull on electrons. Electronegativity decreases as you move down a group in the periodic table because atomic size increases and the outer electrons are farther from the nucleus, reducing the attraction for additional electrons.
What is the general trend of ionization energy as you go across the periodic table?
Across a period, first ionization energy increases. However, when going down a group, first ionization energy generally decreases. As you go down a group, atoms hove more total electrons so they don't really care that much about their outermost ones.
How does electronegative change going down and across the periodic table?
Electronegativity generally decreases as you go down a group on the periodic table due to the increasing distance between the nucleus and valence electrons, reducing the attractive force. Across a period, electronegativity generally increases due to the increasing nuclear charge, pulling valence electrons closer and increasing their attraction.
What decreases across the periodic table?
Atomic size decreases across a period
How does the atomic raduis change across a period of the periodic table?
The atomic radius generally decreases across a period of the periodic table from left to right due to increased nuclear charge pulling electrons closer to the nucleus. This results in a stronger attractive force, leading to a smaller atomic radius.
Does atomic size increase from left to right across the periodic table?
it decreases
What happen if you move left to right a across a periodic table in metals?
Across a period the metallic character decreases
Does electropositivity increases or decreases as you move left to right across a period on the periodic table?
Electropositivity decreases along a period. The metallic character also decreases.
How does Electronegativity trend across the periodic table?
Electronegativity generally increases from left to right across a period and decreases down a group in the periodic table. This trend occurs because elements on the right side of the periodic table have a greater ability to attract electrons due to increased nuclear charge and effective nuclear charge.
What is an example of periodicity?
A good example of periodicity would be the size of an atom which decreases across the Periodic Table but increases down the column
What is the periodic trend for electrongativity?
Electronegativity generally increases from left to right across a period and decreases from top to bottom within a group on the periodic table. This trend is due to the increasing nuclear charge across a period and the increasing distance between the nucleus and valence electrons down a group.
WHAT BEST STATES THE TREND IN ATOMIC RADIUS ACROSS THE PERIODIC TABLE?
As you move across the periodic table from left to right (across a period), the atomic radius of the elements tends to decrease.
How does an element's electronegativity relate to its position on the periodic table?
Electronegativity generally increases as you move from left to right across a period on the periodic table, and decreases as you move down a group. This trend occurs because elements closer to fluorine (the most electronegative element) on the periodic table have higher electronegativities.
What happens to the melting temperature as you go from left to right across a row in the periodic table?
it increases then decreases
