Periodic Trends

What is the shielding effect?

• Electrons in an atom can shield each other from the pull of the nucleus. This effect, called the shielding effect, describes the decrease in attraction between an electron and the nucleus in any atom with more than one electron shell.

• Electrons in an atom can shield each other from the pull of the nucleus. This effect, called the shielding effect, describes the increase in attraction between an electron and the nucleus in any atom with more than one electron shell.

• Protons in an atom can shield each other from the pull of the nucleus. This effect, called the shielding effect, describes the decrease in attraction between an electron and the nucleus in any atom with more than one electron shell.

What is Coloumb's law?

• A law stating that opposite charges repel and like charges attract, with a force proportional to the product of the charges and inversely proportional to the square of the distance between them.

• A law stating that like charges repel and opposite charges attract, with a force inversely proportional to the product of the charges and proportional to the square of the distance between them.

• A law stating that like charges repel and opposite charges attract, with a force proportional to the product of the charges and inversely proportional to the square of the distance between them.

What is the definition of atomic radius?

• The measure of how strongly atoms attract bonding electrons to themselves

• The minimum amount of energy required to remove the most loosely bound electron of an isolated neutral gaseous atom or molecule.

• The measure of an atom's ion in a crystal lattice.

• measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons

What is the periodic trend of atomic radius?

• Atomic radius will decrease across a period and decrease down a group.

• Atomic radius will decrease across a period and increase down a group.

• Atomic radius will increase across a period and increase down a group.

• Atomic radius will increase across a period and decrease down a group.

Which has the largest atomic radius?

• Y

• Mo

• Rh

• Cd

What is the definition of ionic radius?

• The measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons

• The measure of how strongly atoms attract bonding electrons to themselves

• The minimum amount of energy required to remove the most loosely bound electron of an isolated neutral gaseous atom or molecule.

• The measure of an atom's ion in a crystal lattice.

What is the periodic trend of ionic radius?

• Ionic radius will decrease across a period and increase down a group.

• Ionic radius will increase across a period and decrease down a group.

• Ionic radius will increase across a period and increase down a group.

• Ionic radius will decrease across a period and decrease down a group.

Which has the largest ionic radius?

• F^-

• Na⁺

• Mg⁺²

• S^-2

• Cl^-

What is the definition of ionization energy?

• The measure of an atom's ion in a crystal lattice.

• The minimum amount of energy required to remove the most loosely bound electron of an isolated neutral gaseous atom or molecule.

• The measure of how strongly atoms attract bonding electrons to themselves

• The measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding shells of electrons

What is the periodic trend of ionization energy?

• Ionization energy will decrease across a period and increase down a group.

• Ionization energy will decrease across a period and decrease down a group.

• Ionization energy will increase across a period and decrease down a group.

• Ionization energy will increase across a period and increase down a group.