Periodic Table and Types of Bonding

Ordinary matter is composed of extremely small particles called:

• elements

• atoms

• bonds

• metals

What does the atomic number tell you?

• the number of electrons

• the number of electrons

• the number of protons

• the atomic mass

Silicon is an element. This means the pure samples of silicon:

• are composed of particles that aren't bonded together

• conduct heat and electricity

• can be separated into components with different properties

• are composed of atoms that are all exactly the same-silicon atoms

As you move __________ the Periodic Table, the size of the atoms decreases

As you move ___________ the periodic table, the size of the atoms increases.

In all elements, atoms are joined together by chemical bonds

• True

• False

Both molecules and lattices are formed by chemical bonds between atoms. What is the difference between them?

• Molecules are small groups, lattices are continuous frameworks

• Molecules form solids, lattices form liquids and gases

• Molecules make up metal elements, lattices make up non-metal elements

• Molecules contain atoms of the same element, lattices contain atoms of different elements

Select the appropriate answers:

Metals are distinguished from non-metals by certain properties, including

• Conducting electricity

• being composed of single, unbonded atoms

• being shiny

• being easily broken

What does 12.011 represent?

• mass number

• atomic number

• element number

• group number

What does the 6 represent in this image?

• relevant atomic mass

• atomic number

• chemical symbol

• atomic mass