further trends in the periodic table and atomic mass

Question 1

difference btw the reactions of metals and non-metals

Answer 1

• when metals react they lose electrons from their valence shell. more reactive metals lose electrons more easily.
• when non-metals react they accept electrons into their valence shell. reactive non-metals accepts electrons more easily.

Question 2

reactivity of metals

Answer 2

lesser reactive metals are more likely to be found in their pure form than more reactive metals. - typically require more complex methods of extraction

Question 3

reactivity of metals - trend across a period

Answer 3

when metals react they lose electrons.
as we move across a period -> core charge increases and electron shielding remains constant. results in general increase in energy required to remove electron

Question 4

reactivity of metals down a group

Answer 4

as move down group -> core charge remains same
number of energy levels and electron shielding increases
results in general decrease in energy required to remove electrons.
therefore, reactivity of metals increases down a group

Question 5

RAM

Answer 5

(relative abundance x relative isotopic mass) + (relative abundance x relative isotopic mass) ________________________________________________________
100