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How does ionic radius differ from atomic radius?
Ionic radius is greater than atomic radius in a negative ion and less than it in a positive ion.
Why sodium is more reactive the lithum?
lithium is IA group element .As lithium is basic it should give its electron easily but it is not that effecient in this as sodium.As it has small radius and high nuclear attraction towards its electrons.but sodium has larger atomic radii than the lithium less nuclear attraction towards its electrons.thus sodium is more reactive than lithium.
Why is the sodium atom smaller than the chlorine atom in a salt molcule?
The sodium atom loses an electron to chlorine. Chlorine has a higher electronegativity so it attracts the electron from sodium. Sodium now has 11 positive protons holding only 10 electrons whereas chlorine has an extra electron to control. Chlorine has 17 protons holding 18 negative electrons, therefore, its proton to electron ratio has gone down. Sodium's proton to electron ratio went up, therefore, the electrons are closer to the nucleus and the ionic radius is less than the atomic radius.
Why is the first ionization energy of aluminium is less than the first ionisation energy of silicon?
Al has atomic number 13, and silicon has atomic number 14. The extra electron that silicon has is in a 3p orbital. In simple terms the extra charge on the silicon nucleus contracts the electron shell, this increases the energy to remove an electron and also decreases the atomic radius. Al, first ionization energy 577.5 kJ/mol, atomic radius 125pm Si, first ionization energy 786.3 kJ/mol, atomic radius 110pm
Rank the following elements by increasing electronegativity sulfur oxygen neon aluminum?
K, P, N, O the highest is F it increases from bottom to top and from left to right hope this helps:)
How does ionic radius differ from atomic radius?
Ionic radius is greater than atomic radius in a negative ion and less than it in a positive ion.
Who has a larger atomic radius Be or O?
N-- Because it has less electrons, the proton pull is smaller on each individual electron, holding them closer to the nucleus and making the radius smaller
Which is smaller in radius bromine or sodium?
Sodium(Na) has smaller radius than Bromine because Na has less number of shells.
What element has the atomic number less that sodium and is a metal?
Something Stupid,y?
How does the presence of core electrons affect the atomic radius of elements?
When there is an anion (negative charge) the radius will be larger because it is more full whereas it will be smaller if it is a positive charge because of less electrons. ex largest to smallest radius (K-,K, K+)
Why sodium is more reactive the lithum?
lithium is IA group element .As lithium is basic it should give its electron easily but it is not that effecient in this as sodium.As it has small radius and high nuclear attraction towards its electrons.but sodium has larger atomic radii than the lithium less nuclear attraction towards its electrons.thus sodium is more reactive than lithium.
Why is the sodium atom smaller than the chlorine atom in a salt molcule?
The sodium atom loses an electron to chlorine. Chlorine has a higher electronegativity so it attracts the electron from sodium. Sodium now has 11 positive protons holding only 10 electrons whereas chlorine has an extra electron to control. Chlorine has 17 protons holding 18 negative electrons, therefore, its proton to electron ratio has gone down. Sodium's proton to electron ratio went up, therefore, the electrons are closer to the nucleus and the ionic radius is less than the atomic radius.
When you decrease the amount of atomic radius does the element become more reactive?
With metals, as atomic radius decreases, the element becomes less reactive. A smaller atom means its valence electrons are closer to the nucleus, and the nucleus (with its positive charge) holds them tighter. A metal atom with a large atomic radius will be more reactive, because its valence electrons are farther from the nucleus, and less subject to the nucleus' effective nuclear charge. For example, considering the elements sodium and cesium, cesium is the more reactive of the two, because cesium is a larger atom, and its valence electrons are farther away, and thus easier to lose. (review "ionization energy.")
Atomic radius of silver?
A little bit more than cadmium; a little bit less than palladium.
Why is it easier to remove an electron from a sodium atom than from a magnesium atom?
Phosphorus has a higher energy level so it pulls harder on its electrons.
Within a period what happens to the atomic radius you go down the column?
The atomic radius generally increases as you move down a column in the periodic table. This is because each successive element has an additional energy level, leading to larger orbits for the electrons and an overall increase in atomic size.
Why sodium is more reactive than potassium?
The atomic radius of potassium is greater than that of sodium. Therefore, the single valence electron that exists for all alkali metals is located farther from the nucleus for potassium than sodium. This results in less energy required to remove that valence electron from potassium than from sodium, leading to increased reactivity. Note that this trend continues as you move down Group I on the Periodic Table, meaning that Rubidium is more reactive than Potassium and Cesium is more reactive than Rubidium.
