II.A skupina Flashcards

1
Q

II.A

A

tvoří zásadité l. (Ca(OH)2))
kovy
Ra - radioaktivni
2 val. el. - s prvky
ns2

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2
Q

el. konfigurace Ca2+

A

[Ar]

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3
Q

Které prvky snadno tvori kationty

A

prvky vice dole, maji vetsi atomy (lepe se rozpojuji)

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4
Q

Ba a Be ionizacni E

A

Ba nizsi ionizacni E ( E, ktera je potreba dodat k odstepeni el. od jadra)

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5
Q

amfoterni l

A

latka ani kysele ani zasadite povahy
muze se chovat jako oboji, zalezi s cim reaguje
Be(OH)2
Ca(OH)2
Ba(OH)2

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6
Q
A
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