碳酸鈣是否元素

碳酸鈣是一種化合物，化學式是CaCO3。它是地球上常見物質，可於岩石內找到。動物背殼和蝸牛殼的主要成份。

當然唔係, 元素得一個字
碳酸鈣又碳又酸又鈣當然係化合物啦

ps. 碳酸鈣 = 碳 + 三個氧 + 鈣

An element is that It can not be broken down the other things. As CaCO3 can be decomposed to give CO2 and CaO. It is a ionic compound.

no.... 碳酸鈣 is a compound.

元素得一個字

世界上玩有既元素:
1 H 氫 氢 Hydrogen
2 He 氦 氦 Helium
3 Li 鋰 锂 Lithium
4 Be 鈹 铍 Beryllium
5 B 硼 硼 Boron
6 C 碳 碳 Carbon
7 N 氮 氮 Nitrogen
8 O 氧 氧 Oxygen
9 F 氟 氟 Fluorine
10 Ne 氖 氖 Neon
11 Na 鈉 钠 Sodium (来自拉丁语 Natrium)
12 Mg 鎂 镁 Magnesium
13 Al 鋁 铝 Aluminum
14 Si 矽 硅 Silicon
15 P 磷 磷 Phosphorus
16 S 硫 硫 Sulfur
17 Cl 氯 氯 Chlorine
18 Ar 氬 氩 Argon
19 K 鉀 钾 Potassium (来自德语 Kalium)
20 Ca 鈣 钙 Calcium
21 Sc 鈧 钪 Scandium
22 Ti 鈦 钛 Titanium
23 V 釩 钒 Vanadium
24 Cr 鉻 铬 Chromium
25 Mn 錳 锰 Manganese
26 Fe 鐵 铁 Iron (来自拉丁语 Ferrum)
27 Co 鈷 钴 Cobalt
28 Ni 鎳 镍 Nickel
29 Cu 銅 铜 Copper (来自拉丁语 Cuprum)
30 Zn 鋅 锌 Zinc
31 Ga 鎵 镓 Gallium
32 Ge 鍺 锗 Germanium
33 As 砷 砷 Arsenic
34 Se 硒 硒 Selenium
35 Br 溴 溴 Bromine
36 Kr 氪 氪 Krypton
37 Rb 銣 铷 Rubidium
38 Sr 鍶 锶 Strontium
39 Y 釔 钇 Yttrium
40 Zr 鋯 锆 Zirconium
41 Nb 鈮 铌 Niobium
42 Mo 鉬 钼 Molybdenum
43 Tc 鍀 锝 Technetium
44 Ru 釕 钌 Ruthenium
45 Rh 銠 铑 Rhodium
46 Pd 鈀 钯 Palladium
47 Ag 銀 银 Silver (来自拉丁语 Argentum)
48 Cd 鎘 镉 Cadmium
49 In 銦 铟 Indium
50 Sn 錫 锡 Tin (来自拉丁语 Stannum)
51 Sb 銻 锑 Antimony (来自拉丁语 Stibium)
54 Xe 氙 氙 Xenon
52 Te 碲 碲 Tellurium
53 I 碘 碘 Iodine
55 Cs 銫 铯 Caesium
56 Ba 鋇 钡 Barium
57 La 鑭 镧 Lanthanum
58 Ce 鈰 铈 Cerium
59 Pr 鐠 镨 Praseodymium
60 Nd 釹 钕 Neodymium
61 Pm 鉕 钷 Promethium
62 Sm 釤 钐 Samarium
63 Eu 銪 铕 Europium
64 Gd 釓 钆 Gadolinium
65 Tb 鋱 铽 Terbium
66 Dy 鏑 镝 Dysprosium
67 Ho 鈥 钬 Holmium
68 Er 鉺 铒 Erbium
69 Tm 銩 铥 Thulium
70 Yb 鐿 镱 Ytterbium
71 Lu 鑥 镥 Lutetium
72 Hf 鉿 铪 Hafnium
73 Ta 鉭 钽 Tantalum
74 W 鎢 钨 Tungsten (来自德语 Wolfram)
75 Re 錸 铼 Rhenium
76 Os 鋨 锇 Osmium
77 Ir 銥 铱 Iridium
78 Pt 鉑 铂 Platinum
79 Au 金 金 Gold (来自拉丁语 Aurum)
80 Hg 汞 汞 Mercury (来自拉丁语 Hydragyrum)
81 Tl 鉈 铊 Thallium
82 Pb 鉛 铅 Lead (来自拉丁语 Plumbum)
83 Bi 鉍 铋 Bismuth
84 Po 釙 钋 Polonium
85 At 砹 砹 Astatine
86 Rn 氡 氡 Radon
87 Fr 鈁 钫 Francium
88 Ra 鐳 镭 Radium
89 Ac 錒 锕 Actinium
90 Th 釷 钍 Thorium
91 Pa 鏷 镤 Protactinium
92 U 鈾 铀 Uranium
93 Np 錼 镎 Neptunium
94 Pu 鈽 钚 Plutonium
95 Am 鋂 镅 Americium
96 Cm 鋦 锔 Curium
97 Bk 錇 锫 Berkelium
98 Cf 鉲 锎 Californium
99 Es 鑀 锿 Einsteinium
100 Fm 鐨 镄 Fermium
101 Md 鍆 钔 Mendelevium
102 No 鍩 锘 Nobelium
103 Lr 鐒 铹 Lawrencium
104 Rf 鑪 钅卢 Rutherfordium
105 Db ����(釒杜) 钅杜 Dubnium
106 Sg ����(釒喜) 钅喜 Seaborgium
107 Bh ����(釒波) 钅波 Bohrium
108 Hs ����(釒黑) 钅黑 Hassium
109 Mt 䥑 钅麦 Meitnerium
110 Ds 鐽 钅达 Darmstadtium
111 Rg 錀 钅仑 Roentgenium
112 Uub Ununbium
113 Uut Ununtrium
114 Uuq Ununquadium
115 Uup Ununpentium
116 Uuh Ununhexium
117 Uus Ununseptium
118 Uuo Ununoctium

2006-12-20 14:35:00 補充：
仲有元素係唔以分解的碳酸鈣係可以分解的

no
because it can use be brake be heart to be CaO andCO2

碳酸鈣我知的就不是，元素我知的就是風，水，土和氣

2006-12-20 10:53:56 補充：
更正元素應該是氣，土，水和火先係

No.It is 化合物.元素是不能以化學方法化解為更簡單物質的純物質.

element just contain one metal or non metal, u must be talking about compound