Indicate whether the elements represented by the given pairs of elector have sim
ID: 1011953 • Letter: I
Question
Indicate whether the elements represented by the given pairs of elector have similar chemical properties. What periodic trends are for the following pro spec Metallic character Non metallic character Atomic radii Which pair of elements would you expect to exhibit the greatest similarity in the p and chemical properties? has protons, neutrons, and electrons. Describe proton, neutron, and electron comparing charge and mass? Atoms are neutral because. An atom contains 13 neutrons and 14 electrons. The mass number and the number of protons for this atom are, respectively, . In the above measurement, what is the length of the paper clip shown in each picture?Explanation / Answer
17)
A) metallic cahracter : in a group from top to bottom metallic character increases. in a period from left to right metallic cahracter decreases
B) non metallic cahracter : in a group from top to bottom non metallic character decreases. in a period from left to right metallic cahracter increases
C) atomic radii : in a group from top to bottom atomic radaii increases. in a period from left to right atomic radaii decreases
19)
80 Hg 200
number of protons = 80
number of electrons = 80
number of neutraons = 200 - 80 = 120
20)
proton charge posiitive and it is 1.602 x 10^-19 C
electron is charge negative and it is -1.602 x 10^-19 C
neutron charge = 0
mass order of these threee : neutron > proton > electron
21 ) atom is neutral becuase it has equal number of protons and electrons
22 ) number of protons = 14
mass number = 13 + 14 = 27
25 ) order of BP : CH4 < CO2 < H2O < NaO