The Periodic Table review

What is another word for chemical properties?

• Reactivity

• Stability

• Conductivity

• Viscosity

Which group are the Noble gases found?

• Group 1

• Group 7

• Group 18

• Group 14

What was the relationship between the elements in Dobereiner's triads?

• All had similar chemical properties, the average of the atomic mass of two of the elements equalled the atomic mass of the third.

• All had identical atomic masses.

• The elements were randomly selected without any specific relationship.

• The elements had no chemical properties in common.

What is the trend in reactivity as you move down Group 1?

• The reactivity of alkali metals decreases as you move down Group 1.

• The reactivity of alkali metals remains constant as you move down Group 1.

• The reactivity of alkali metals increases as you move down Group 1.

• The reactivity of alkali metals fluctuates as you move down Group 1.

List problem's associated with REE extraction

• Pollution of the water and soil with carcinogens and radioactive thorium

• Increased biodiversity in local ecosystems

• Reduction of greenhouse gas emissions

• Improvement of local water quality

What is the most reactive element in Group 17?

• Chlorine

• Bromine

• Fluorine

• Iodine

Why was Newlands' periodic table linked to music?

• He organized the elements into 'octaves' according to their properties. Octaves are sets of notes in music.

• He used musical notes to represent the atomic weights of elements.

• He believed that elements could be played like musical instruments.

• He composed a symphony that included the elements as themes.

How did Dobereiner organize elements?

• In pairs, 'duads'

• In groups of four, 'tetrads'

• Groups of three, 'triads'

• In a linear fashion, 'lines'

Name three scientists who proposed models for the periodic table, in chronological order.

• Mendeleev, Rutherford, Bohr

• Dobereiner, Newlands, Mendeleev

• Thomson, Dalton, Curie

• Einstein, Planck, Heisenberg

What is the common property of elements in Group 17?

• They have low electronegativity and low reactivity.

• They are known for their high electronegativity and reactivity.

• They are all noble gases.

• They have a high melting point and low boiling point.