Química 10 Flashcards

1
Q

Núcleo

A

Protões e neutrões. Concentra a maior massa do átomo.

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2
Q

Nuvem eletrónica

A

Eletrões. Ocupa maior volume.

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3
Q

Átomo

A

Eletricamente neutro (possui o número de eletrões igual ao número de protões)

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4
Q

Elemento químico

A

Conjunto de átomos iguais entre si.

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5
Q

Nanotecnologia

A

Manipulação de materiais à escala atómica e molecular de forma a que adquiram características especiais. (Nanotecnologia; Nanomedicina;…)

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6
Q

Algarismos significativos

A

Algarismos diretamente lidos e um duvidoso.

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7
Q

Soma e Subtração

A

Mantem-se o número de algarismos significativos igual ao do fator com menor número de casas decimais.

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8
Q

Multiplicação e divisão

A

Mantem-se o número de algarismos significativos igual ao do fator com menor número de algarismos significativos.

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9
Q

ato-(a)

A

10^-18

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10
Q

fento-(f)

A

10^-15

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11
Q

pico-(p)

A

10^-12

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12
Q

nano-(n)

A

10^-9

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13
Q

micro-(u)

A

10^-6

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14
Q

mili-(m)

A

10^-3

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15
Q

centi-(c)

A

10^-2

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16
Q

deci-(d)

17
Q

deca-(da)

18
Q

hecto-(h)

19
Q

kilo-(k)

20
Q

mega-(M)

21
Q

giga-(G)

22
Q

tera-(T)

23
Q

peta-(P)

24
Q

exa- (E)