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Strontium is larger in size compared to calcium due to more electron shells, making it easier for strontium to lose valence electrons farther from the nucleus. This results in weaker attraction between the valence electrons and the nucleus, leading to easier electron loss in strontium compared to calcium.
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Is calcium more reactive than strontium?
No, strontium is more reactive than calcium. This is because strontium is located below calcium in the periodic table and thus has a larger atomic size, making it easier for strontium to lose its outermost electron and react with other elements.
How is a strontium atom different from a strontium ion?
An isotope has extra or fewer neutrons in the nucleus than the average number for that element. This may or may not result in a radioactive isotope. An ion has extra or fewer electrons orbiting the nucleus. This usually increases the chemical reactivity.
What atoms has the weakest attraction for electrons in a bond with a calcium Ca atom?
Atoms with weak electron attraction in a bond with calcium (Ca) include alkali metals such as lithium (Li), sodium (Na), and potassium (K). These atoms have only one valence electron, making it easier for them to lose or donate electrons rather than attract or share them. As a result, they tend to form ionic bonds with calcium, where calcium loses electrons and the alkali metal gains them.
What is the valence of selenium if has six valence electrons?
Two- Since it has six valence electrons, it can form two covalent bonds, making the valence two. If it is easier to think about it this way, eight valence electrons would stabilize the element. Eight minus six is two, giving us the same answer as before.
Why magnesium has lower melting and boiling point than calcium strontium and other members present below magnesium?
Magnesium has a lower melting and boiling point than calcium, strontium, and other members below it in the group because it has a smaller atomic size, lower nuclear charge, and weaker metallic bonding. These factors result in weaker forces of attraction between the magnesium atoms, making it easier to overcome them and melt or boil the metal.
Is calcium more reactive than strontium?
No, strontium is more reactive than calcium. This is because strontium is located below calcium in the periodic table and thus has a larger atomic size, making it easier for strontium to lose its outermost electron and react with other elements.
Why Ba is more reactive than Ca?
strontium is more reactive than calcium because it is more electropositive. valance electrons of strontium are farther away from the nucleus of strontiium atom than the valance electrons of calcium from nucleus of calcium atom. so the force exerted by the nucleus on the valence electron of strontium is lesser than that exerted by calcium. so the strontium atom can loose its valance electrons more easily. therefore strontium is more electropositive and more reactive than calcium.
How is a strontium atom different from a strontium ion?
An isotope has extra or fewer neutrons in the nucleus than the average number for that element. This may or may not result in a radioactive isotope. An ion has extra or fewer electrons orbiting the nucleus. This usually increases the chemical reactivity.
Is it easier to lose electrons when the valence electrons are far from the nucleus?
Yes, it is true.
Why do atoms form positive ions and others form negative ions?
It is a matter of how full an atom's outer or valence shell of electrons is. For most atoms, the most stable setup is one with a full shell of 8 valence electrons, and an atom will gain or lose electrons to achieve this. For atoms with close to 8 valence electrons, such a chlorine (7 valence electrons, it is generally easier to gain electrons and thus become negatively charged. For atoms with few valence electrons, such as sodium (1 valence electron), it is easier to lose electrons and go down to the next lowest shell, which is already full.
Why are valence electrons easier to remove from an atom than core electrons?
Valence electrons are further away from the nucleus and experience less attraction to the positively charged protons in the nucleus compared to core electrons. This makes valence electrons easier to remove from an atom. Core electrons are located closer to the nucleus and are more strongly attracted to the nucleus, requiring more energy to remove them from the atom.
Which is more likely to form a cation between sodium and calcium?
Sodium is easier to form Na+ then Calcium forming Ca2+. The main reason is because Sodium has got 1 valence electron, which is more unstable than Calcium having 2 valence electrons. It requires less energy to remove one electron from Sodium than two electrons from Calcium. Therefore, Sodium is higher than Calcium in the reactivity series.
Why is calcium more reactive than magnesium?
Calcium is more reactive than magnesium because it is larger than a magnesium atom because it has one more energy level. Valence electrons are on the outermost occupied energy level in the atom and they cause the atom to react, and thus the further the Valence electrons are from the nucleus, the more reactive they are. Therefore, calcium is more reactive than magnesium because the valence electrons on the calcium atom is farther from the nucleus.
Which element is most likely to ionize by losing two electrons?
The group 2 elements are most likely to ionize by losing two electrons, becomings cations with a 2+ charge.
Is it easier to take electrons away from chlorine or from calcium?
It is easier to take electrons away from chlorine because it is in Group 17 of the periodic table with a higher electronegativity value compared to calcium in Group 2. Chlorine has a greater tendency to gain electrons to achieve a stable electron configuration.
What atoms has the weakest attraction for electrons in a bond with a calcium Ca atom?
Atoms with weak electron attraction in a bond with calcium (Ca) include alkali metals such as lithium (Li), sodium (Na), and potassium (K). These atoms have only one valence electron, making it easier for them to lose or donate electrons rather than attract or share them. As a result, they tend to form ionic bonds with calcium, where calcium loses electrons and the alkali metal gains them.
Why is it harder to remove an electron from Magnesium than it is to remove an electron from Calcium?
Zinc has more electrons in its outer energy level than Calcium. Because of this, itsnucleus is more attracted to this energy level and pulls it more the nucleus in Calcium. Because of this greater attraction it is harder to remove the electron from Zinc.
