Kemi Flashcards

1
Q

Grupp går

A

Neråt

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2
Q

Period går

A

åt höger

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3
Q

Grupp anger

A

valenselektroner

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4
Q

Period anger

A

antal elektronskal (energinivåer)

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5
Q

Orbital

A

Plats för 2 elektroner

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6
Q

Homogen blandning

A

Beståndsdelarna kan inte urskiljas

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7
Q

K,L,M,N skalens elektroplatser

A

2,8,18,32

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8
Q

Metaller bilder

A

positiva joner

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9
Q

ickemetallerna i grupp 16 & 17 bildar

A

negativa joner

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10
Q

ämnen i grupp 13-15 bildar

A

sällan/aldrig joner

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11
Q

hos övergångsmetallerna ..(elektronskal)

A

fylls gradvis det näst yttersta elektronskalet ju längre till höger i perioden

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12
Q

atomnummer

A

antal protoner

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13
Q

masstal

A

summan av antalet protoner och neutroner

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14
Q

A =

A

Z + N

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15
Q

Heterogen blandning

A

beståndsdelarna kan urskiljas

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16
Q

metaller egenskaper

A

blanka, hårda, leder ström, böjbara

17
Q

Ickemetaller egenskaper

A

leder ej ström (isolatorer), lägre densitet (oftast gaser)