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How do you determine the number of neutron?
Protons = Atomic Number Electrons = Atomic Number Neutrons = Atomic Mass - Atomic Number *A note on Atomic Mass* Atomic Mass is the sum of the number of protons and neutrons in an atom. Every time you remove or add a Proton/Electron or a Neutron, you change the mass by one. *A note on Protons and Electrons* The number of Protons and Electrons in an atom is always the same. Whenever you talk about adding/removing a proton or an electron, you are by default adding/removing one of the other as well.
Would you expect it to be harder to remove an electron from Na or O?
It would be easier to remove an electron from Na compared to O. Sodium (Na) has a smaller effective nuclear charge and a larger atomic radius compared to oxygen (O), making its valence electron easier to remove. Oxygen has a higher electronegativity and a stronger pull on its electrons, making it harder to remove an electron from O.
What element do you get if you remove a proton the nucleus of a lithium atom?
an isotope of the element helium is obtained.
Why is Cs more electropositive than Rb?
Cs is more electropositive than Rb because Cs has a larger atomic size and a single electron in the outermost shell, which makes it easier for Cs to lose an electron and form a cation. As we move down the group in the periodic table, atomic size increases, shielding effect increases, and atomic number increases, all of which contribute to the increase in electropositive character.
What elements have 2 protons in the nucleus?
Helium, number two on the periodic table of elements. Nothing else has two protons, for to remove a proton or add a proton is to change the element.
How do you charge an atom?
remove either a proton or electron OR add a proton or electron...
How does electron shielding explain why it is easier to remove an electron from rubidium than from lithium?
In rubidium, having a larger atomic radius, the attraction force between the atomic nucleus and and the electron from outermost shell is lower.
How do you determine the number of neutron?
Protons = Atomic Number Electrons = Atomic Number Neutrons = Atomic Mass - Atomic Number *A note on Atomic Mass* Atomic Mass is the sum of the number of protons and neutrons in an atom. Every time you remove or add a Proton/Electron or a Neutron, you change the mass by one. *A note on Protons and Electrons* The number of Protons and Electrons in an atom is always the same. Whenever you talk about adding/removing a proton or an electron, you are by default adding/removing one of the other as well.
Would you expect it to be harder to remove an electron from Na or O?
It would be easier to remove an electron from Na compared to O. Sodium (Na) has a smaller effective nuclear charge and a larger atomic radius compared to oxygen (O), making its valence electron easier to remove. Oxygen has a higher electronegativity and a stronger pull on its electrons, making it harder to remove an electron from O.
Why do you think an increase in atomic radius would result in a lower ionization energy?
An increase in atomic radius leads to a lower ionization energy because the outermost electrons are farther from the nucleus, experiencing weaker attraction, making it easier to remove them.
What happens when you take away a proton?
When you remove a proton from an atom, it changes into a different element. The element becomes one with an atomic number one less than before, which affects its chemical properties. This process alters the balance of positive and negative charges within the nucleus, potentially leading to radioactive decay in certain situations.
What element do you get if you remove a proton the nucleus of a lithium atom?
an isotope of the element helium is obtained.
What is the correlation of ionization energies to atomic radii for the elements?
There is an inverse relationship between ionization energy and atomic radius: as atomic radius increases, ionization energy decreases. This is because as the distance between the nucleus and valence electrons increases, the attraction between them weakens, making it easier to remove an electron.
Why is it easier to lose electrons from a cesium atom than from a lithium atom?
It all has to due with ionization energy. Ionization energy is the energy required to remove an electron from an atom to make it an ion. Cesium has a lower ionization energy than Lithium, so it is easier to remove electrons, and thus lose electrons, from a Cesium atom than a Lithium atom.
Why does an increase in atomic radius lead to a lower ionization energy?
An increase in atomic radius leads to a lower ionization energy because the outermost electrons are farther away from the nucleus, which weakens the attraction between the electrons and the nucleus. This makes it easier to remove an electron, resulting in a lower ionization energy.
What happens when you add or remove protons in an atom?
Adding or removing protons in an atom changes the element itself, as the number of protons determines the atomic number. Adding a proton creates a new element, while removing a proton changes the atom into a different element. This process also affects the overall charge of the atom, as the number of protons affects the balance of positive charges in the nucleus.
Why is the ionization energy of cheorine is much higher than the ponization energy of sodium?
Chlorine has a higher ionization energy than sodium because chlorine has a smaller atomic size and higher effective nuclear charge, making it more difficult to remove an electron. Sodium, on the other hand, has a larger atomic size and lower effective nuclear charge, making it easier to remove an electron and requiring less energy.
