S GD-T TP

S GD-T TP. H Ch Minh Kim tra 1 tit - Nm hc 2015 2016 Trng Quc T Vit c Mn: Ho hc 10- Thi gian: 45 pht

H tn hc sinh: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lp: . . .

Cu 1: (3,0)a. Hy cho bit: in tch ht nhn, s proton, s ntron, s electron, s khi ca nguyn t sau y: ;

b. Tnh khi lng (g) ca nguyn t oxi (gm 8 proton, 8 ntron, 8 electron).Cu 2: (2,5) Tng s ht c bn trong nguyn t R l 52, s ht khng mang in nhiu hn s ht mang in m l 1 ht. Tm s proton, s electron, s ntron , s khi v vit k hiu ca nguyn t?Cu 3: (2,5) Vit cu hnh electron nguyn t ca cc nguyn t c s hiu nguyn t ln lt l 15, 29. Nhng nguyn t no l kim loi? L phi kim? L kh him? V sao?

Cu 4: (2,0 )

Tnh nguyn t khi trung bnh ca nguyn t Ne bit trong t nhin Ne c 2 ng v l v , trong chim 91%.

Ni dung kin thcMc nhn thcCng

Nhn bitThng hiuVn dngVn dng mc cao hn

1. Cho k hiu nguyn t, tnh in tch ht nhn, s proton, s ntron, s electron, s khi ca nguyn t Tnh khi lng nguyn t (g)1

11

21

3

2. Bi tp ton ht. Tm s proton, s electron, s ntron, s khi v vit k hiu ca nguyn t1

0,5

1

21

2,5

3. Vit cu hnh electron1 0,51 1 1 11

2,5

4.Bi ton ng v

1

11

1 1

2

Tng s cu

Tng s im3 23

43

44

10

P N KIM TRA 1 TIT- HO 10

CUNI DUNGIM

1(3,0)(a)

(b)

- in tch ht nhn 13+

- S p = 13, s e = 13

-S n= 27 - 13 = 14-S khi = 27

- in tch ht nhn 16+

- S p = 16, s e = 16-S n= 32 - 16 = 16-S khi = 32

0,25

0,25

0,25

0,25 0,25

0,25

0,25 0,25 0,5

0,5

2(2,5 )

EMBED Equation.DSMT4

e =17

A = p + n = 35K hiu

0, 5

0,5

0,25

0,25

0,5

0,5

3

(2,5) P l nguyn t phi kim v c 7 electron lp ngoi cng.

Cu l nguyn t kim loi v c 1 electron lp ngoi cng.

0,50,75

0,5

0,75

4

(2,0)

Phn trm ca ng v l 100- 91 =9%

0,5 0,75 0,75

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