Ch 5 20 Q - IE, EA, EN

The energy needed to remove an electron from an atom is know as ____.

• ionization energy

• electron affinity

• electronegativity

• reaction energy

The energy needed to remove the most loosely held electron from an atom is know as ____.

• first ionization energy

• electron affinity

• electronegativity

• reaction energy

Tags

NGSS.HS-PS1-2

The desire for another electron is know as ____.

• first ionization energy

• electron affinity

• electronegativity

• reaction energy

The relative attraction for electrons that are being SHARED with another atom is know as ____.

• first ionization energy

• electron affinity

• electronegativity

• reaction energy

Which statement is correct about removing electrons from an atom?

• The second electron removed from an atom is easier to remove than the first electron.

• Generally, each electron removed from an atom becomes more and more difficult and requires more and more energy.

• Electrons are easy to remove from any atom until the noble gas configuration is reached then they get difficult to remove.

• Electrons cannot be remove from atoms.

Answer explanation

Each electron is held onto by the nucleus with a stronger force as the protons outnumber the electrons.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which statement(s) is/are true?

• Generally, metals have a lower first ionization energy than nonmetals.

• Groups 17 and 18 have very high first ionization energies

• Larger atoms have a lower first ionization energy than smaller atoms.

• All the other statements are true

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Which statement is true?

• Elements with a high first ionization energy are difficult to remove electrons from.

• Elements with a low first ionization energy are difficult to remove electrons from.

• Elements with a high first ionization energy are easy to remove electrons from.

• Elements with a low first ionization energy are easy to add electrons to.

Answer explanation

Along with that, those with a low first ionization energy will lose one or more electrons relatively easily.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What does a high electron affinity mean?

• A high desire for another electron.

• A low desire for another electron.

• A high desire to lose an electron.

• A weak attraction for electrons that are being shared with another atom.

Tags

NGSS.HS-PS1-2

What best describes an element whose electron configuration ends with s¹?

• It has a low electron affinity and a low first ionization energy

• It has a high electron affinity and a high first ionization energy

• It has a low electron affinity and a high first ionization energy

• It has a high electron affinity and a low first ionization energy

Answer explanation

This would be an element from Group 1 all of which have a low desire to gain an electron (affinity) but give up an electron relatively easily (low ionization energy).

Tags

NGSS.HS-PS1-1

What best describes an element whose electron configuration ends with p⁵?

• It has a low electron affinity and a low first ionization energy

• It has a high electron affinity and a high first ionization energy

• It has a low electron affinity and a high first ionization energy

• It has a high electron affinity and a low first ionization energy

Answer explanation

This would be an element from Group 17 all of which want another electron (high affinity) and aren't interested in losing any electrons (high ionization energy).

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2