BẢNG TUẦN HOÀN CÁC NGUYÊN TỐ HÓA HỌC

(SUS)

Tên nguyên tố         kí hiệu nguyên tố      số hiệu nguyên tử              khối lượng nguyên tử

Hydrogen    H           1                       1

Helium       He          2                       4

Lithium      Li           3                       7

Beryllium  Be           4                       9

Boron        B             5                       11

Carbon      C             6                       12

Nitrogen    N            7                       14

Oxygen     O            8                       16

Fluorine    F             9                       19

Neon         Ne          10                      20

Sodium    Na           11                      23

Magnesium Mg       12                     24

Aluminium Al         13                     27

Silicon        Si          14                     28

Phosphorus P           15                     31

Sulfur         S           16                     32

Chlorine   Cl           17                     35,5

Argon        Ar         18                     40

Potassium  K          19                     39

Calcium     Ca         20                    40

Chromium Cr          24                    52

Manganese Mn       25                     55

Iron            Fe         26                     56

Nickel      Ni           28                     59

Copper   Cu            29                     64

Zinc       Zn             30                     65

Bromine Br             35                     80

Silver     Ag            47                     108

Barium  Ba             56                     137

Platinum Pt             78                    195

Gold       Au           79                     197

Mercury Hg           80                      201

Lead      Pb            82                      207

tìm lỗi sai

viết đoạn văn kể lại lễ tưởng niệm 528 năm ngày mất trạng nguyên lương thế vinh được tổ chức tại trường lương thế vinh ở phú yên

gợi ý: mở bài : -giới thiệu sự việc(lí do tham gia)

-thời gian

-không gian

thân bài: -nêu dấu tích huyền thoại liên quan

-miêu tả lễ vật

-kể về những thành tựu đạt được

-kể sơ lược về nêu cảm xúc của buổi lễ

kết bài:-khẳng định ý nghĩa cuộc đời của anh hùng,đối với dân tộc ta

-nêu cảm nhận về buổi lễ.   GIÚP MÌNH VỚI

II,give the right form of one word from the box to complete the following sentences

apply,handicap,enroll,organize,citizen,lose, co-educate,nature,recycle,word

1.Yesterday a little child got _____ and then a policeman helped him to find out the way home

2.This charity organization is popular ______

3.They have a _____ programmer for young girls and boys

4.The Y & Y helps to encourage young children to paticipate in a ______ programmer

5.We should save our ______ resources by reusing and recycling the used things

6.She is _____ for the activities for her summer vacation

7.Please fill in the _____ form with your personal information

8.We should help the ______ children with their homework

9.BSA is a youth _____

10.We should take care of our _____ and personal fitness

complete the sentences with the correct form of the words.

1.southeast asia has many____(attract)

2.she lives in a small village and its_______(surround)

3.do you think all the cars in the future will run on_____(electrict)

4.most people want to live a_______house.(comfort)

5.i want to buy some home_______for my new house(apply)

6.i live in a peaceful_______(neighbor)

7.his neighbourhood is________for good and cheap hotels(fame)

8.remember brushing your teeth.clean teeth are______ teeth(health)

9.we are________about the fial exam(worry)

10.she always washes and irons her clothes_______(careful)

11.i'm________of hearing the ghost stories(scare)

12.how_________is the river?(length)

13.lan was absent from class because of her______.(sick)

14.i have an________with my doctor at 5.p.m.(appoint)

15.he has a bad cold.He feels very________(pleasant)

16.what is the________of this building?(high)

17.yesterday,i__________an awful stomachache.(have)

18.we shouldn't eat much_________food and sugar(fat)

19.the football match was very________.i enjoyed it.(excite)

20.my grandmother is eighty seven years old.she walks very_______.(slow)