Periodic Table Revision

Which scientist coined the terms elements and compounds?

• Moseley

• Davy

• Boyle

• Mendeleev

Which scientist developed techniques to split compounds into elements, leading to the discovery of strontium and sodium?

• Boyle

• Davy

• Moseley

• Mendeleev

What was the scientist Dobereiner attributed with discovering with regards to the periodic table?

• The law of triads

• The Octet law

• the presence of positively charged protons in the nucleus

• ordering elements by atomic weight

Which element has the symbol Br

• Beryllium

• Bromine

• Boron

• Strontium

What is the chemical symbol for chromium

Dmitri Mendeleev organised his periodic table through...

• Increasing atomic weight

• Similar properties

• Increasing atomic weight and properties

• Atomic mass

Which element has the symbol Fe?

Which group of the modern periodic table was not present on Mendeleevs periodic table?

• Halogens

• Earth metals

• Alkali earth metals

• Noble gases

Why did Mendeleev place Iodine and Tellurium differently in the periodic table?

• He thought they looked better there

• Random selection

• He wanted elements of similar properties together

• He wanted to keep the order of atomic number accurate

What element has the symbol K?