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Electron configurations elements

Ball color Number of holes Identity of element Electron configuration Number of unpaired electrons... [Pg.171]

Symbol Am Atomic Number 95 Atomic Weight 243.0614 an inner-transition, actinide series, radioactive man-made element electron configuration ... [Pg.15]

Symbol Ar atomic number 18 atomic weight 39.948 an inert gas element electronic configuration Is22s22p63s23p ionization potential 15.76eV stable isotopes and natural abundance Ar-40 99.6%, Ar-36 0.337%, Ar-38 0.063% unstable isotopes, half-life and disintegration mode ... [Pg.59]

Symbol Ba atomic number 56 atomic weight 137.327 a Group llA (Group 2) alkaline earth element electronic configuration [Xejs valence state +2 ionic radius of Ba2+ in crystal (corresponding to coordination number 8) 1.42 A first ionization potential lO.OOeV stable isotopes and their percent abundances Ba-138 (71.70), Ba-137 (11.23), Ba-136 (7.85), Ba-135 (6.59), Ba-134 (2.42) minor isotopes Ba-130 (0.106) and Ba-132 (0.101) also twenty-two radioisotopes are known. [Pg.77]

Symbol Cf atomic number 98 atomic weight 251 (the principal isotope) californium is a transuranium radioactive actinide element electron configuration [Rn]5/i°7s2 valence state +3 most stable isotope Cf, half-life 800 years isotope properties are presented below ... [Pg.179]

Symbol Cs atomic number 55 atomic weight 132.905 a Group lA (Group 1) alkali metal element electron configuration [Xe]6si atomic radius 2.65 A ionic radius (Cs ) 1.84 A ionization potential 3.89 eV valence +1 natural isotope Cs-133 37 artificial isotopes ranging in mass numbers from 112 to 148 and half-lives 17 microseconds (Cs-113) to 2.3x10 years (Cs-135). [Pg.205]

Symbol Co atomic number 27 atomic weight 58.933 a transtion metal, Group VIll (Group 9) element electron configuration [Ar]3d 4s2 valence +2 and +3 also valences 0, +1, +4, and +5 are known natural isotopes Co-59 (99.8%) and Co-57 (0.2%) radioactive isotope Co-60. [Pg.231]

Symbol Cm atomic number 96 atomic weight 247 a radioactive transuranium actinide series element electron configuration [Rn]5/ 6di7s2 most stable valence state +3 most stable isotope Cm-247. Curium isotopes, half-hves and decay modes are ... [Pg.279]

Symbol Es atomic number 99 atomic weight 252 a radioactive transuranium, actinide series, manmade element electron configuration [Rn]5/ i7s2 the most stable isotope Es-254. Isotopes, their half-lives and the mode of decay are as follows ... [Pg.291]

Symbol Fr atomic number 87 atomic weight 223 heaviest adtah metal element of Group lA (Group 1) a radioactive element electron configuration [Rn]7sk oxidation state -i-l the most electropositive element the most stable isotope, Fr-223 (ti/2 21 minutes), also is the only natural isotope. Isotopes, half-lives and their decay modes are shown below ... [Pg.301]

Symbol Gd atomic number 64 atomic weight 157.25 a lanthanide series rare earth element electron configuration 4/ 5di6s2 partially filled / orbital common oxidation state -i-3 six stable natural isotopes Gd-152 (0.2%), Gd-154 (2.86%), Gd-155 (15.61%, Gd-156 (20.59%), Gd-157 (16.42%), Gd-157 (23.45%)... [Pg.302]

Symbol Ga atomic number 31 atomic weight 69.723 a Group lllA (Group 13) element electron configuration [Ar]3di°4s24pi oxidation state -i-3, also exhibits +2 and -i-l ionic radius, Ga + 1.13A two stable natural isotopes Ga-69 (60.20%), Ga-71 (39.80%). [Pg.307]

Symbol He atomic number 2 atomic weight 4.0026 a Group 0 (Group 18) inert gas element second hghtest element electron configuration Is valence 0 no chemical compound known atomic radius 0.33A isotope He-3 is found in trace concentration in He-4 natural abundance of He-3 1.37 ppm short-hved radioisotopes He-5, He-6, and He-8 are known. [Pg.335]

Symbol Ho atomic number 67 atomic weight 164.93 a lanthanide series rare earth element electron configuration [Xe]4/ii6s2 valence state +3 metallic radius (coordination number 12) 1.767A atomic volume 18.78 cc/mol ionic radius Ho3+ 0.894A one naturally occurring isotope. Ho-165. [Pg.338]

Symbol In atomic number 49 atomic weight 114.82 a Group IIIA (Group 13) metalhc element electron configuration [Kr]4di°5s25pi most common valence state +3 also exhibits valence +2 and +1 two stable isotopes. In-113 (4.23%),... [Pg.390]

Symbol Kr atomic number 36 atomic weight 83.80 a Group 0 (Group 18) element inert gas element electron configuration Is22s22p63s23p 3di°4s24p valence state 0 an uncommon valence state +2 exists for its difluoride first ionization potential 13.999 volt six stable natural isotopes are known most abundant isotope Kr-84. Natural isotopes and their abundances Kr-78 (0.354%), Kr-80 (2.20%), Kr-82 (11.56%), Kr-83 (11.55%), Kr-84 (56.90%), Kr-86 (17.37%). [Pg.441]

Symbol Lr atomic number 103 atomic weight 262 a transuranium inner-transition actinide series element a synthetic radioactive element electron configuration [RnjTs b/ Sdi valence +3 six isotopes of masses 255 to 260 have been synthesized longest-lived known isotope Lr-260 has half-life of 3 minutes. [Pg.453]

Symbol No atomic number 102 atomic weight 259 an actinide series, transuranium, synthetic radioactive element electron configuration [Rn]5/i47s2 valence states +2, -i-3. [Pg.668]

Symbol Pu atomic number 94 atomic weight 244 an actinide series transuranium element a man-made radioactive element electron configuration [Rn]5/ 7s2 partially filled f suhsheU valence states +3, +4, -i-5, +6 eighteen isotopes in the mass range 228-230, 232-246 aU isotopes radioactive the longest lived isotope Pu-244, ti/2 8.2x10 year the shortest hved isotope Pu-233, ti/2 20.9 minute. [Pg.726]

Symbol Rb atomic number 37 atomic weight 85.468 a Group I (Group 1) alkali metal element electron configuration [Kr] 5si valence -i-l atomic radius 2.43A ionic radius, Rb+ 1.48A atomic volume 55.9 cc/g-atom at 20°C ionization potential 4.177 V standard electrode potential Rb+ + e Rb, E° = -2.98V two naturally-occurring isotopes, Rb-85 (72.165%) and Rb-87 (27.835%) Rb-87 radioactive, a beta emitter with a half-bfe 4.88xl0i° year twenty-seven artificial radioactive isotopes in the mass range 74—84, 86, 88-102. [Pg.795]


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Electron configuration Period 3 elements

Electron configuration carbon family elements

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Electron configuration main-group elements

Electron configuration of the elements

Electron configuration, continued Period 1 elements

Electron configuration, continued transition elements

Electron configurations heavy elements

Electron configurations of transition elements

Electron configurations superheavy elements

Electron configurations transition elements

Electron elements

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Electronic configuration of the elements

Electronic configuration of the elements (to radon

Electronic configuration of transition elements

Electronic configuration, element

Electronic configuration, element

Electronic configurations elemental classification

Electronics elements

Element electron configuration, 14 (Table

Elements ground state electron configurations

Ground state electronic configuration 5-block elements

Ground state electronic configuration listed for elements

Ground state electronic configuration p-block elements

Ground state electronic configurations of the elements and ionization energies

Group VIIIA elements electron configurations

Inner transition elements electron configurations

Inner transition elements electronic configuration

Lanthanide elements, actinides compared electronic configurations

Matrix elements connecting different electronic configurations

Rare earth elements electron configuration

Rare earth elements electronic configuration

Representative elements electron configurations

Rutherfordium (element electron configuration

Skill 19.5 Connect the chemical and physical properties of elements to electron configuration

The Electronic Configurations of Elements Beyond Neon

Transition elements electronic configurations

Transition elements, electronic configuration integrals

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