Material Structure and Bonding

Choose the correct answer about Atom

• A combination of two or more of one kind of atoms bonding together

• Basic unit of an element formed for all materials whether in solid, gas or liquid.

• Various kinds of atoms are combined chemically

• Various / different kinds of atoms combined together but not chemically bond

Choose the correct answer about Compound

• Various / different kinds of atoms combined together but not chemically bond

• A combination of two or more of one kind of atoms bonding together

• The basic unit of an element formed for all materials whether in solid, gas or liquid

• Various kinds of atoms are combined chemically

Si present as

• Element Symbol

• Element Name

• Atomic Number

• Atomic Mass

Choose the correct answer for the electron configuration for Silicon element.

• 2 : 8 : 8 : 8 : 2

• 2 : 6 : 6

• 2 : 8 : 4

• 14 : 28

Choose the correct group for this element.

• Group 2

• Group 6

• Group 8

• Group 1

The horizontol rows of elements on the periodic table are called PERIODS.

• TRUE

• FALSE

Chemical characteristic of an element in the periodic table is depends on the electron valence.

• TRUE

• FALSE

Select the primary bonds of atomic bonding

• Ionic bonding

• Metallic bonding

• Covalent bonding

• Atomic bonding

Select the right bonding for NaCl

• Metallic bonding

• Ionic bonding

• Atomic bonding

• Covalent bonding

Select the right statement for the Covalent bonding.

• Can be done by sharing two electrons between pairs of atoms

• Force of attraction between the opposite charges of an ion

• Each atom would like to gain an electron and form a stable octet

• Each atom contributes one electron for the sharing process