Chapitre 2 : infiniment petit Flashcards

1
Q

l’atome est électriquement

A

neutre

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

nucléons (A) =

A

protons (Z) + neutrons (N)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

diamètre du noyau

A

10 puissance -15 m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

diametre de l’atome

A

10 p. -10 m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

L’atome est essentiellement composé de…

A

vide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

deux ions forment un précipité

A

si leurs charges sont opposées

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

l’atome est … plus grand que son noyau

A

100000 (10 p. 5)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

ion qui provient d’un groupe d’atomes

A

ion polyatomique

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

ion qui ne provient que d’un atome

A

ion monoatomique

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

anion

A

atome qui GAGNE un ou plusoieurs électrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

cation

A

atome qui PERD un ou plusieurs électrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

cations + ou -

A

+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

anions + ou -

A

-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

précipité blanc (noircit à la lumière)

A

CL - + nitrate d’argent = AG+

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

précipité bleu

A

Cu2+ + hydroxyde de sodium= HO-

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

précipité vert foncé

A

Fe2+ + HO- (hydroxide de sodium)

17
Q

précipité rouille/ marron

A

Fe3+ + HO- (hydroxide de sodium)