What is electron affinity and electronegativity?

Electronegativity is defined as a chemical property which decides the propensity of an atom to attract an electron. In the year 1932, Linus Pauling proposed the concept of electronegativity. Electron affinity is defined as the amount of energy liberated when a molecule or neutral atom acquires an electron from outside.

Is ea1 positive or negative?

positive
However, according to this Study.com website, 1st electron affinity (energy released) is positive. Both contradicting websites address the point that when electrons are added to a neutral atom, energy is released.

What is Al electron affinity?

Electron Affinity of Aluminum is 42.5 kJ/mol.

What is electron affinity and ionization energy?

Ionization energy: the energy required to remove an electron from a neutral atom. Electron affinity: the energy change when a neutral atom attracts an electron to become a negative ion. Electronegativity: the ability of an atom in a molecule to draw bonding electrons to itself.

What is electronegativity chemistry?

Electronegativity is a chemical property that describes the tendency of an atom or a functional group to attract electrons toward itself.

What is electronegativity difference?

Electronegativity describes the degree to which an atom attracts electrons in a chemical bond. The difference in the electronegativity of two atoms determines their bond type. If the electronegativity difference is more than 1.7, the bond will have an ionic character.

Why is ea1 exothermic?

When an electron is added to an atom, the energy change is exothermic because of the attraction of the electron to the nucleus.

Which of the following will have almost positive ea1?

For alkaline earth metals, filled ‘s’ subshell discourages the addition of an electron. The electron affinity is almost zero. EA is a positive value for the magnesium atom.

What is the electronegativity of Al?

1.61Aluminium / Electronegativity

Who has highest electron affinity?

Chlorine
Chlorine has the highest electron affinity among the elements. Its high affinity can be attributed to its large atomic radius, or size.

What’s the difference between ionization potential and electron affinity?

The main difference between electron affinity and ionization energy is that electron affinity gives the amount of energy released when an atom gains an electron whereas ionization energy is the amount of energy required to remove an electron from an atom.

What is the difference between ionization and electronegativity?

Electronegativity is the tendency of an atom to attract the electrons in a bond towards it while ionization energy is the energy a neutral atom needs to remove an electron from it.