3-48 Based on periodic table position, select the two elements in each set of elements that would be expected to have similar chemical properties. uNa, 14Si, 23V, 55Cs 1. 13A1, 19K, 32GE, soSn 2. 3. 37Rb, 38Sr, 54Xe, 56Ba 4. 2He, 6C, g0, 10NE

ENRICHMENT Fill in the blanks. Complete the statements about the features of the elements in the periodic table. Choose from the given pool of words below. CARD 1 #Fullfilled energy level atomic number orbital/sublevel family period f-block s-block p-block d-block electrons is one of the bases of how are the with Increasing elements in the Periodic Table are arranged. Elements similar properties are grouped as, 2 where the elements have the same number of electrons in their outermost shell and 1 3, where the elements have the same number of main energy levels. The periodic table of elements consists of 4 columns (Group 1A and Group 2A); the (Groups 3A to 8A); the, 2B); and the lanthanides and actinides. This number of columns for each 2 _, 6 columns 10 columns (Groups 3B to 14 columns under the group of 7 block corresponds to the number of electrons capable of filling up the s, p, dand forbitals. Given the electron configuration of the element oxygen, 1s2 s2$ 2p4, the numerical…

esc - a . 10 11 12 = 13 14 15 B B 16 17 18 19 20 21 22 23 24 26 27 28 29 30 31 32 33 or 25 :0 Y F1 1 F2 X N> A F5 8 T H|V R E 5 You will use the known periodic trends to compare properties for elements indicate with letters in this periodic table. Consider their relative positions for these questions. Your answers will be letters as indicated above, not the actual element symbol they would coordinate to. (Do not use a real periodic to answer this question.) • Which element would be expected to have the lowest first ionization energy? A • Which labeled element in the fourth period of the chart above has the highest quantity electron affinity energy? A MacBook Air DOO 80 DOO DII DD F3 F4 F6 F8 F9 F10 F7 A LIQ A 0 F11

Please check and see if I got the information in the table below correct. If there are mistakes please correct them.  Protons Neutrons Electrons Element Symbol Element Name Net Charge Mass Number Valence Electrons 1 0 1 H Hydrogen 0 1 1 6 6 6 C Carbon 0 12 4 8 8 8 O Oxygen 0 16 6 3 4 2 Li Lithium +1 7 0 5 6 4 B Boron +1 11 3 4 4 2 Be Beryllium +2 8 2 9 10 10 F Fluorine -1 19 8 2 2 2 He Helium 0 4 2 5 4 7 B Boron -2 9 5 6 6 6 C Carbon 0 12 4

What does the following element description actually mean? N+1 1. a sodium atom with 11 protons, 10 electrons, and 11 neutrons 2.a nitrogen atom with 6 protons, 14 electrons, and 7 neutrons 3.a sodium atom with 12 protons, 11 electrons, and 11 neutrons 4.a nitrogen atom with 7 protons, 6 electrons, and 7 neutrons 5.none of the above

A chemical reaction occurs in three stages. Each stage consists of a mix of positively and negatively charged elements. Some of those elements react by bonding together, but each pair can only consist of 1 negatively charged and 1 positively charged element. Some elements can exist by themselves without bonding with other elements. In the chemical reaction, there are 8 elements (Z, Y, X, W, V, U, T, S). In the first reaction, two pairings were made: Z bonded to T, and U bonded to X. In the third reaction, V bonded to S. The reaction only consisted of three negatively charged elements. Which of the following statements is false? Pick ONE option Y must be positively charged V must be positively charged W must be positively charged T, X, and S could possibly be negatively charged OT, X, and 5 could possibly be positively charged ►

10)Which pair of particles has the same number of electrons