Electrons and PTable Trends Exam

Identify the element with the following electron configuration: 1s²2s²2p³.

Which of the following statements is true about anions?

• Typically nonmetals

• Typically metals

• Tend to share electrons

• Tend to have positive oxidation numbers

• They are really fun at parties

Two oxygen atoms have a difference in electronegativity of 0. What type of bond will they form?

• Non-Polar Covalent

• Polar covalent

• Ionic

• They will not form a bond.

The energy required to remove one electron from a neutral atom of an element is known as ________.

• electronegativity

• ionization energy

• reactivity

• quantum energy

• magic

Consider the periodic trend seen for ionic radius. Atoms that lose electrons tend to become ________. Atoms that gain electrons tend to become ________.

• smaller; smaller

• larger; smaller

• smaller; larger

• larger; larger

Which of the following groups of elements would most likely have the least electronegativity?

• Halogens

• Alkali metals

• Alkaline earth metals

• Transition metals

• Transuranium elements

Why do nonmetals tend to form anions?

• They have high ionization energy

• They have low electronegativity

• They gain electrons easily

• They lose electrons easily.

What is electron shielding?

• The attraction between electrons and the nucleus

• The repulsion between electrons

• The blocking of nuclear charge by inner electrons

• The sharing of electrons between atoms.

Which element has a higher ionization energy, sodium (Na) or chlorine (Cl)?

• Sodium (Na)

• Chlorine (Cl)

• Both have the same ionization energy

• It depends on the temperature.

Why does bromine have a higher ionization energy than potassium?

• It has a larger atomic radius

• It has a smaller atomic radius

• It has a lower nuclear charge

• It has more electron shielding.