Pengguna:Interscale2/Kotak pasir

Karbon/oksigen, _6/8C/O
	Garis spektrum helium
Ciri-ciri umum
Sebutan	/ˈhiːliəm/ HEE-lee-əm
Rupa	gas tidak berwarna, berkilau merah-jingga apabila diletakkan di dalam medan elektrik bervoltan tinggi
Karbon/oksigen dalam jadual berkala
	hidrogen �� karbon/oksigen → litium
Nombor atom (Z)	6/8
Kumpulan, kala	kumpulan 18 (gas nadir), kala 1
Blok	Blok s
Konfigurasi elektron	{{{electron configuration}}}
Ciri-ciri fizikal
Ciri-ciri atom
Isotop utama bagi karbon/oksigen
	lihat; bincang; sunting; \| rujukan \| dalam Wikidata

Ujian 1 :

Kesaksamaan

Kereta

Kapal Selam

Gajah

Kuala Gandah

Rekaan 1

Objektif: Untuk mereka jadual di bawah dalam Bahasa Melayu:

I. Not felt	Not felt except by a very few under especially favorable conditions.
II. Weak	Felt only by a few persons at rest, especially on upper floors of buildings.
III. Weak	Felt quite noticeably by persons indoors, especially on upper floors of buildings. Many people do not recognize it as an earthquake. Standing motor cars may rock slightly. Vibrations similar to the passing of a truck. Duration estimated.
IV. Light	Felt indoors by many, outdoors by few during the day. At night, some awakened. Dishes, windows, doors disturbed; walls make cracking sound. Sensation like heavy truck striking building. Standing motor cars rocked noticeably.
V. Moderate	Felt by nearly everyone; many awakened. Some dishes, windows broken. Unstable objects overturned. Pendulum clocks may stop.
VI. Strong	Felt by all, many frightened. Some heavy furniture moved; a few instances of fallen plaster. Damage slight.
VII. Very Strong	Damage negligible in buildings of good design and construction; slight to moderate in well-built ordinary structures; considerable damage in poorly built or badly designed structures; some chimneys broken.
VIII. Severe	Damage slight in specially designed structures; considerable damage in ordinary substantial buildings with partial collapse. Damage great in poorly built structures. Fall of chimneys, factory stacks, columns, monuments, walls. Heavy furniture overturned.
IX. Violent	Damage considerable in specially designed structures; well-designed frame structures thrown out of plumb. Damage great in substantial buildings, with partial collapse. Buildings shifted off foundations.
X. Extreme	Some well-built wooden structures destroyed; most masonry and frame structures destroyed with foundations. Rails bent.
XI. Extreme	Few, if any, (masonry) structures remain standing. Bridges destroyed. Broad fissures in ground. Underground pipe lines completely out of service. Earth slumps and land slips in soft ground. Rails bent greatly.
XII. Extreme	Damage total. Waves seen on ground surfaces. Lines of sight and level distorted. Objects thrown upward into the air.

Hasil:

I. Tidak dirasai	Tidak dirasai kecuali beberapa orang di bawah keadaan tertentu.
II. Lemah	Hanya dirasai beberapa orang, biasanya di bangunan-bangunan tinggi.
III. Lemah	Senang dirasai orang di dalam bangunan, terutamanya di bangunan-bangunan tinggi. Ramai orang tidak mengenalinya sebagai gempa bumi. Kenderaan bergegar sedikit. Gegaran sama seperti lori dipandu di hadapan seseorang. Tempoh dianggarkan.
IV. Ringan	Dirasai ramai orang di dalam bangunan, beberapa orang di luar pada waktu siang. Beberapa orang bangun pada waktu malam. Pinggan mangkuk, tingkap dan pintu dikacau; dinding membuat bunyi merekah. Gegaran seperti lori melanggar bangunan. Kenderaan jelas bergegar.
V. Sederhana	Dirasai hampir semua orang; ramai bangun.Beberapa pinggan mangkuk, tingkap rosak. Benda tidak stabil terjatuh. Jam ayunan bandul mungkin terhenti.
VI. Kuat	Dirasai semua orang, ramai yang takut. Beberapa perabot berat bergerak; beberapa kepingan cat terjatuh. Kerosakan sedikit.
VII. Sangat Kuat	Tunggu Sebentar
VIII. Teruk	Tunggu Sebentar
IX. Ganas	Tunggu Sebentar

Proses: Dalam pembinaan.

Rekaan 2

Proses: Dalam pembinaan