Problem

Without consulting Figure 2.6 or Table 2.2, determine whether each of the following electr...

Without consulting Figure 2.6 or Table 2.2, determine whether each of the following electron configurations is an inert gas, a halogen, an alkali metal, an alkaline earth metal, or a transition metal. Justify your choices.

(a) 1s22s22p63s23p63d74s2
(b) 1s22s22p63s23p6
(c) 1s22s22p5
(d) 1s22s22p63s2
(e) 1s22s22p63s23p63d24s2
(f) 1s22s22p63s23p64s1

Figure 2.6 The periodic table of the elements.The numbers in parentheses are the atomic weights of the most stable or common isotopes.

Table 2.2Expected Electron Configurations for Some Common Elementsa

Element	Symbol	Atomic Number	Electron Configuration
Hydrogen	H	1	1s1
Helium	He	2	1s2
Lithium	Li	3	1s22s1
Beryllium	Be	4	1s22s2
Boron	B	5	1s22s22p1
Carbon	C	6	1s22s22p2
Nitrogen	N	7	1s22s22p3
Oxygen	O	8	1s22s22p4
Fluorine	F	9	1s22s22p5
Neon	Ne	10	1s22s22p6
Sodium	Na	11	1s22s22p63s1
Magnesium	Mg	12	1s22s22p63s2
Aluminum	Al	13	1s22s22p63s23p1
Silicon	Si	14	1s22s22p63s23p2
Phosphorus	P	15	1s22s22p63s23p3
Sulfur	S	16	1s22s22p63s23p4
Chlorine	Cl	17	1s22s22p63s23p5
Argon	Ar	18	1s22s22p63s23p6
Potassium	K	19	1s22s22p63s23p64s1
Calcium	Ca	20	1s22s22p63s23p64s2
Scandium	Sc	21	1s22s22p63s23p63d14s2
Titanium	Ti	22	1s22s22p63s23p63d24s2
Vanadium	V	23	1s22s22p63s23p63d34s2
Chromium	Cr	24	1s22s22p63s23p63d54s1
Manganese	Mn	25	1s22s22p63s23p63d54s2
Iron	Fe	26	1s22s22p63s23p63d64s2
Cobalt	Co	27	1s22s22p63s23p63d74s2
Nickel	Ni	28	1s22s22p63s23p63d84s2
Copper	Cu	29	1s22s22p63s23p63d104s1
Zinc	Zn	30	1s22s22p63s23p63d104s2
Gallium	Ga	31	1s22s22p63s23p63d104s24p1
Germanium	Ge	32	1s22s22p63s23p63d104s24p2
Arsenic	As	33	1s22s22p63s23p63d104s24p3
Selenium	Se	34	1s22s22p63s23p63d104s24p4
Bromine	Br	35	1s22s22p63s23p63d104s24p5
Krypton	Kr	36	1s22s22p63s23p63d104s24p6