UPCAT Chem Review

A type of bond that is form by donation of a pair of electrons from one atom to another.

• A)    Ionic

• B) Covalent

• C) Metallic

• D) Coordinate covalent

A type of bond that is form by sharing of electrons between atoms of similar electronegativity.

• A)    Ionic

• B) Covalent

• C) Metallic

• D) Coordinate covalent

A type of bond that is an attractive force between oppositely charged ions.

• A)    Ionic

• B) Covalent

• C) Metallic

• D) Coordinate covalent

Which of the following molecule is connected by an ionic bond.

• A)    H₂

• B) LiF

• C) F₂

• D) CF₄

What type of bond is present between the carbon atoms of C₂H₆?

• A)  Ionic

• B) Covalent

• C) Metallic

• D) Coordinate Covalent

An electron-dot symbol consists of the symbol representing the element and an arrangement of dots that usually shows

• A) the number of neutrons.

• B) the number of protons.

• C) the atomic weight.

• D) the electrons in the outermost energy levels

For main group elements, the number of valence electrons a neutral atom brings to a Lewis structure is the same as its _____________ number in the periodic table.

• A) atomic

• B) group

• C) period

• D) shell

In getting the sum of the valence electrons from all atoms of an anion, we _______ one electron for each negative charge to the original count of valence electrons.

• A) add

• B) subtract

• C) divide

• D) disregard

In writing a Lewis structure, the central atom is generally _______________ than the atoms surrounding it.

• A) less electronegative

• B) more electronegative

• C) has fewer number of valence electrons

• D) has more number of valence electrons

The tendency for an atom to achieve a configuration where its valence shell contains eight electrons is called the

• A) Octet rule

• B) Valence Bond Theory

• C) Molecular Orbital Theory

• D) Valence-shell Electron-pair Repulsion