CPC 6.1 Ion Formation

Multiple Choice

According to the octet rule, atoms tend to gain, lose, or share electrons in order to acquire ______.

• eight valence electrons

• eight core electrons

• eight protons

• eight neutrons

Multiple Select

Which of the following are ways atoms will try to get 8 valence electrons?

• gain

• lose

• create

• share

Multiple Choice

What is a chemical bond?

• A force that holds two atoms together

• A type of chemical reaction

• A process of electron sharing

• A method of energy transfer.

Multiple Choice

Chemical bonds can form by the attraction between the positive nucleus of one atom and the _______ of another atom.

• positive electrons

• negative electrons

• neutral electrons

• positive ions

Multiple Choice

Which of the following can be used to illustrate the formation of chemical bonds?

• A) Electron-dot structures

• B) Molecular formulas

• C) Atomic numbers

• D) Chemical equations

Multiple Choice

What does ionization energy refer to?

• How easily an atom loses an electron

• How much attraction an atom has for electrons

• The energy required to form a chemical bond

• The stability of a noble gas.

Multiple Choice

Electron affinity indicates how much attraction an atom has for ______.

• protons

• neutrons

• electrons

• ions

Multiple Choice

Which of the following statements is true about noble gases?

• They have low ionization energies

• They have high electron affinities

• They show a lack of chemical reactivity

• They have incomplete outermost energy levels.

Multiple Choice

Group 17 Halogens, like this element, have a strong pull on electrons.

• Hydrogen

• Chlorine

• Oxygen

• Nitrogen

Multiple Choice

Atoms try to form an octet by gaining or losing what?

• Protons

• Neutrons

• Valence electrons

• Atomic mass

Multiple Choice

Which Group 1 Alkali metal tends to lose 1 electron to become more stable?

• Sodium

• Fluorine

• Neon

• Argon

Multiple Choice

What is a positively charged ion called?

• Anion

• Cation

• Neutron

• Proton

Multiple Choice

A positive ion forms when an atom loses one or more ______.

• Nuclear Protons

• Neutrons

• Valence electrons

• Nucleus

Multiple Select

Which of the following elements form positive ions?

• Sodium

• Gold

• Iron

• Oxygen

• Neon

Multiple Choice

In the process of forming a positive ion, an atom attains a ______ configuration.

• Noble gas

• Metallic

• Non-metallic

• Liquid

Multiple Choice

Which groups of metals are the most reactive?

• Group 1 and 2

• Group 2 and 13

• Group 1 and 13

• Group 2 and 3

Multiple Choice

What is the charge of an ion formed when a Group 1 metal loses its s¹ electron?

• 1+

• 2+

• 3+

• 0

Multiple Choice

In which group do metals form a 3+ ion when they lose their s²p¹ electron?

• Group 1

• Group 2

• Group 13

• Group 14

Multiple Choice

Fill in the blank: The configuration for a Group 2 ion is [noble gas] ns², and it forms a ______ charge when the s² electrons are lost.

• 1+

• 2+

• 3+

• 4+

Multiple Select

Which of the following ions can transition metals commonly form?

• 1+

• 2+

• 3+

• 4+

Multiple Choice

What is the term used for relatively stable electron arrangements that are not noble gases?

• Pseudo-noble gas configurations

• Noble gas configurations

• Transition metal configurations

• Ion configurations

Multiple Choice

In the electron configuration of Zn²⁺

[Ar]4s²3d¹⁰

which subshell loses electrons?

• 3d

• 4s

• 3p

• 4p

Multiple Choice

What do nonmetals do to attain a stable outer electron configuration?

• Lose electrons

• Gain electrons

• Share electrons

• None of the above

Multiple Choice

The figure shows chlorine gaining an electron. What type of ion does chlorine become after gaining an electron?

• Cation

• Anion

• Neutral atom

• Isotope

Multiple Choice

An anion is a ________ charged ion.

• Positively

• Negatively

• Neutrally

• Doubly

Multiple Choice

What is the charge of the ion formed when three electrons are gained in Group 15?

• 1-

• 2-

• 3-

• 4-

Multiple Choice

How many electrons are gained to form a noble-gas configuration in Group 16?

• One

• Two

• Three

• Four

Multiple Choice

Fill in the blank: Nonmetal ions gain the number of electrons required to fill an octet and gain a __ configuration.

• metal

• noble-gas

• halogen

• alkaline

Multiple Choice

What is true of a chemical bond?

• It is the force that holds two atoms together.

• It is never formed by ions.

• It is formed only by ions.

• It forms by the attraction between the positive nucleus of one atom and the positive nucleus of another atom.

Multiple Choice

Which best describes why atoms try to form an arrangement of eight valence electrons in their outer energy level?

• to gain electrons

• to lose electrons

• to form ions

• to acquire the stable electron structure of a noble gas.

Multiple Choice

Which of the following is true?

• Anions are positively charged ions.

• A chloride ion is a cation.

• A sodium ion is an anion.

• Cations are positively charged ions.

Multiple Choice

Which metals are the most reactive?

• metals in groups 1 and 3

• metals in groups 1 and 2

• metals in groups 2 and 13

• Metals are not reactive.

Match

Match the characteristics to the correct elements.

• They are not reactive.

• They gain electrons to attain a stable outer electron configuration.

• They lose electrons to attain a noble gas electron configuration.

• They lose electrons to attain a pseudo-noble gas electron configuration.

Noble Gases

Group 18

Halogens

Group 17

Alkali Metals

Group 1

Transition Metals

d-block

• Noble Gases

  Group 18

• Halogens

  Group 17

• Alkali Metals

  Group 1

• Transition Metals

  d-block