6.1 Periodic table, metal and non-metal

6.1 Periodic table, metal and non-metal

Periodic Table of Elements

• 1st proposed by Russian chemist Dmitri Mendeleev in 1869

• The modern periodic table was made by the english scientist Henry Moseley

• 118 elements (until 2016)

• 18 groups (in columns)

• 7 periods (in rows)

• lined up in rows based on their the number of protons in their nucleus (atomic number)

Inert gases / Noble gases

• group 18

• They’re colorless, odorless, tasteless, and nonflammable.

• It was originally believed that their atoms could not bond to other elements or form chemical compounds, but that has since been disproven.

Multiple Choice

Who introduced the Periodic table?

• Johnstone Stoney

• Ernest Rutherford

• Dimitri Mendeleev,

• Antoine Lavoisier

Multiple Choice

What determines the order of elements on today’s periodic table?

• increasing atomic mass

• decreasing atomic mass

• increasing atomic number (no. of proton)

• decreasing atomic number (no. of proton)

Multiple Choice

These are found on the Periodic Table.

• Compounds

• Elements

• Mixtures

Multiple Choice

which of these elements have atomic number of "15"

Multiple Choice

The vertical columns (jalur menegak) of the periodic table are called...

• Periods

• Families

• Chemical Symbols

• Groups

Multiple Choice

Which of the following is the only metal that exist as a liquid at room temperature?

• Gold (Au)

• Mercury (Hg)

• Titanium (Ti)

Multiple Choice

Which words best describe NON-METALS?

• ductile, shiny, brittle

• malleable, dull, brittle, ductile

• brittle, dull, insulators

Multiple Choice

What does "malleable" mean?

• Can be made into a shape.

• Brittle

• Ductile

• Shiny

Multiple Choice

The property of metal by which it can be drawn into wires is

• sonority

• ductility

• malleability

• conductivity

Fill in the Blanks

Multiple Choice

Lithium

• Metal
• Non-metal

Multiple Choice

Hydrogen

• Metal
• Non-metal

Multiple Choice

Which nonmetal is very essential for our life is

• Iodine

• Oxygen

• Nitrogen

• Chlorine

Multiple Choice

Non-metal used in water purification process

• Oxygen

• Nitrogen

• Chlorine

• Iodine

Multiple Choice

Non-metal used in purple colour solutions which is applied on wounds as an antiseptic

• Iodine

• Oxygen

• Sulphur

• Phosphorus

Fill in the Blanks

Multiple Choice

Which of the following metals is used for making foil to pack foodstuff?

• Aluminium

• zinc

• Sodium

• Copper

Multiple Choice

By looking at the element illustrated here, how might you classify it by appearance?

• Metal

• Non-Metal

• Metalloid