electron configuration
other exceptions to madelung's rule
Table:
Electron shells filled in violation of Madelung's rule[20] (red)

Period 4

Period 5

Period 6

Period 7

Element
Z
Electron Configuration

Element
Z
Electron Configuration

Element
Z
Electron Configuration

Element
Z
Electron Configuration

Lanthanum
57
[Xe] 6s2 5d1

Actinium
89
[Rn] 7s2 6d1

Cerium
58
[Xe] 6s2 4f1 5d1

Thorium
90
[Rn] 7s2 6d2

Praseodymium
59
[Xe] 6s2 4f3

Protactinium
91
[Rn] 7s2 5f2 6d1

Neodymium
60
[Xe] 6s2 4f4

Uranium
92
[Rn] 7s2 5f3 6d1

Promethium
61
[Xe] 6s2 4f5

Neptunium
93
[Rn] 7s2 5f4 6d1

Samarium
62
[Xe] 6s2 4f6

Plutonium
94
[Rn] 7s2 5f6

Europium
63
[Xe] 6s2 4f7

Americium
95
[Rn] 7s2 5f7

Gadolinium
64
[Xe] 6s2 4f7 5d1

Curium
96
[Rn] 7s2 5f7 6d1

Terbium
65
[Xe] 6s2 4f9

Berkelium
97
[Rn] 7s2 5f9

Scandium
21
[Ar] 4s2 3d1

Yttrium
39
[Kr] 5s2 4d1

Lutetium
71
[Xe] 6s2 4f14 5d1

Lawrencium
103
[Rn] 7s2 5f14 7p1

Titanium
22
[Ar] 4s2 3d2

Zirconium
40
[Kr] 5s2 4d2

Hafnium
72
[Xe] 6s2 4f14 5d2

Rutherfordium
104
[Rn] 7s2 5f14 6d2

Vanadium
23
[Ar] 4s2 3d3

Niobium
41
[Kr] 5s1 4d4

Tantalum
73
[Xe] 6s2 4f14 5d3

Chromium
24
[Ar] 4s1 3d5

Molybdenum
42
[Kr] 5s1 4d5

Tungsten
74
[Xe] 6s2 4f14 5d4

Manganese
25
[Ar] 4s2 3d5

Technetium
43
[Kr] 5s2 4d5

Rhenium
75
[Xe] 6s2 4f14 5d5

Iron
26
[Ar] 4s2 3d6

Ruthenium
44
[Kr] 5s1 4d7

Osmium
76
[Xe] 6s2 4f14 5d6

Cobalt
27
[Ar] 4s2 3d7

Rhodium
45
[Kr] 5s1 4d8

Iridium
77

[Xe] 6s2 4f14 5d7

Nickel
28
[Ar] 4s2 3d8 or
[Ar] 4s1 3d9 (disputed)[21]

Palladium
46
[Kr] 4d10

Platinum
78
[Xe] 6s1 4f14 5d9

Copper
29
[Ar] 4s1 3d10

Silver
47
[Kr] 5s1 4d10

Gold
79
[Xe] 6s1 4f14 5d10

Zinc
30
[Ar] 4s2 3d10

Cadmium
48
[Kr] 5s2 4d10

Mercury
80
[Xe] 6s2 4f14 5d10

With reference to the table in the article the article 'electron configuration', section 'other exceptions to madelung's rule', choose the correct column type(s) for the highlighted column using this list of possible types: interests.collection_category, government.political_party, location.in_district, astronomy.celestial_object, medicine.disease, sports.multi_event_tournament, book.written_work, aviation.airport, music.media_format, award.award_presenting_organization, tv.tv_actor, location.province, tv.tv_personality, government.politician, film.music_contributor, medicine.medical_treatment, film.film, biology.animal, location.uk_statistical_location, award.award_discipline, meteorology.tropical_cyclone_season, astronomy.star_system_body, broadcast.tv_channel, tv.tv_character, music.music_video_director, royalty.noble_person, music.musical_group, ice_hockey.hockey_team, soccer.football_player, visual_art.visual_artist, royalty.kingdom, education.educational_degree, music.performance_role, basketball.basketball_player, geography.body_of_water, tv.tv_genre, soccer.football_award, biology.organism, boats.ship_class, sports.sports_league, book.periodical_publisher, chess.chess_player, location.citytown, soccer.football_league, baseball.baseball_league, automotive.company, award.hall_of_fame_inductee, law.legal_case, book.periodical_subject, royalty.chivalric_order_member, martial_arts.martial_artist, internet.website, sports.sports_championship_event, sports.sports_league_draft, law.invention, award.competition, government.legislative_session, astronomy.orbital_relationship, location.region, time.event, people.family_member, book.author, theater.theater_actor, book.periodical, amusement_parks.park, comic_books.comic_book_character, location.in_state, government.general_election, location.us_county, geography.island, ice_hockey.hockey_player, sports.sports_award_winner, sports.sports_position, military.rank, business.consumer_company, film.production_company, olympics.olympic_games, award.award, boats.ship, education.fraternity_sorority, olympics.olympic_event_competition, organization.non_profit_organization, tv.tv_series_episode, architecture.structure, computer.software, language.human_language, metropolitan_transit.transit_system, religion.religious_leader, tv.tv_program, broadcast.broadcast, location.location, music.musical_scale, military.military_post, aviation.aircraft_owner, music.lyricist, cricket.cricket_stadium, time.recurring_event, sports.sports_league_season, book.newspaper, soccer.football_team, astronomy.astronomical_discovery, tv.tv_director, film.film_genre, automotive.model, media_common.media_genre, broadcast.tv_station, education.field_of_study, tv.tv_producer, baseball.baseball_position, location.australian_state, architecture.architectural_structure_owner, sports.tournament_event_competition, chemistry.chemical_compound, location.uk_constituent_country, theater.play, book.magazine, computer.software_license, music.composer, business.brand, military.armed_force, organization.membership_organization, award.award_category, protected_sites.listed_site, basketball.basketball_coach, fictional_universe.fictional_organization, tv.tv_network, soccer.football_team_manager, architecture.venue, spaceflight.astronaut, business.job_title, government.governmental_body, cricket.cricket_bowler, tv.tv_writer, business.customer, business.industry, music.composition, film.producer, military.military_unit, medicine.drug, basketball.basketball_position, astronomy.asteroid, sports.sports_championship, location.administrative_division, celebrities.celebrity, boats.ship_type, cvg.cvg_genre, business.product_category, soccer.football_world_cup, meteorology.tropical_cyclone, government.election, sports.sports_team, cvg.cvg_publisher, soccer.fifa, tennis.tennis_tournament, sports.boxer, music.producer, government.government_office_or_title, music.artist, fictional_universe.fictional_character, sports.professional_sports_team, soccer.football_position, cvg.cvg_platform, business.consumer_product, royalty.monarch, aviation.aircraft_model, aviation.airline, medicine.drug_ingredient, finance.currency, people.ethnicity, basketball.basketball_team, food.food, sports.pro_athlete, american_football.football_player, film.film_distributor, amusement_parks.ride, government.u_s_congressperson, broadcast.genre, broadcast.radio_format, broadcast.radio_station, american_football.football_team, education.university, sports.school_sports_team, baseball.baseball_player, american_football.football_coach, geography.mountain, metropolitan_transit.transit_line, military.military_person, medicine.anatomical_structure, location.hud_county_place, travel.accommodation, government.election_campaign, film.actor, cvg.computer_videogame, computer.computer, tv.tv_program_creator, location.country, sports.cyclist, baseball.baseball_team, government.government_agency, exhibitions.exhibition_sponsor, book.book, tennis.tennis_player, organization.organization, internet.website_owner, education.educational_institution, tennis.tennis_tournament_champion, location.australian_local_government_area, education.school, metropolitan_transit.transit_stop, computer.operating_system, law.court, tv.tv_series_season, broadcast.artist, soccer.football_league_season, biology.organism_classification, government.us_president, film.film_festival_focus, award.award_ceremony, music.album, american_football.football_conference, chemistry.chemical_element, business.defunct_company, cricket.cricket_team, music.record_label, award.recurring_competition, music.genre, ice_hockey.hockey_position, location.capital_of_administrative_division, location.us_state, rail.locomotive_class, royalty.noble_title, sports.sports_facility, geography.river, basketball.basketball_conference, sports.golfer, film.writer, architecture.building, sports.sport, music.group_member, film.director, people.person, cricket.cricket_player, business.business_operation, medicine.muscle, location.jp_prefecture, astronomy.constellation, film.film_character, music.writer, cvg.cvg_developer, music.instrument, military.military_conflict, religion.religion, transportation.road, sports.sports_award_type, education.athletics_brand. Provide only the chosen type(s), separated by commas if multiple, within the list in this JSON: {"answer": ["ANSWER"]}.

{"answer": ["chemistry.chemical_element"]}