QUIZZ QUIMICA STAGE 4

A periodic trend in the periodic table is:

• a repeating pattern observed in the properties of elements across periods and groups.

• the arrangement of elements in alphabetical order.

• the process of elements changing their atomic number.

• a random distribution of element properties.

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Electronegativity is:

• the ability of an atom to attract electrons towards itself in a chemical bond

• the amount of energy required to remove an electron from an atom

• the number of protons in the nucleus of an atom

• the total number of electrons in an atom

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Which element has the highest electronegativity in the periodic table?

• Oxygen

• Fluorine

• Chlorine

• Nitrogen

Atomic radius is the distance from the nucleus to the outermost electron shell, and it ______ down a group.

• increases

• decreases

• remains the same

• varies irregularly

Ionization energy is:

• the energy required to remove an electron from an atom

• the energy released when an atom gains an electron

• the energy needed to break a chemical bond

• the energy absorbed during a phase change

How does ionization energy vary across a period from left to right?

• It increases

• It decreases

• It remains constant

• It first increases then decreases

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A chemical bond is:

• a force that holds atoms together in a molecule or compound

• a type of chemical reaction

• a process of breaking molecules apart

• a method of measuring atomic mass

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The difference between an ionic and a covalent bond is:

• Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

• Ionic bonds involve the sharing of electrons, while covalent bonds involve the transfer of electrons.

• Both involve the sharing of protons.

• Both involve the transfer of neutrons.

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A metallic bond is found in which of the following?

• Metals

• Non-metals

• Ionic compounds

• Covalent compounds

A polar covalent bond is formed:

• when electrons are shared equally between two atoms

• when electrons are transferred from one atom to another

• when electrons are shared unequally between two atoms

• when there is no sharing or transfer of electrons