Covalent Bonding
Akopọ
Not all atoms transfer electrons to form bonds. When two non-metal atoms meet, they often share electrons instead, creating a covalent bond. This type of bonding produces the molecules that make up water, oxygen, carbon dioxide, and almost every substance in living things.
In this lesson you will learn what a covalent bond is, how to draw dot-and-cross diagrams, and why simple molecular substances have low melting points while giant covalent structures like diamond and silicon dioxide are extremely hard and have very high melting points.
Awọn Afojusun
- Know that a covalent bond is formed between atoms by the sharing of a pair of electrons
- Explain why substances with a simple molecular structure are gases or liquids, or solids with low melting and boiling points
- Explain why substances with giant covalent structures are solids with high melting and boiling points
Akọ̀wé Ẹ̀kọ́
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Covalent Bonding. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- A covalent bond involves: A) Transfer of electrons B) Sharing of a pair of electrons C) Attraction between ions D) Delocalised electrons Answer: B
- Simple molecular substances have low boiling points because: A) The covalent bonds are weak B) The intermolecular forces are weak C) They contain ions D) They have giant structures Answer: B
- Which substance has a giant covalent structure? A) Water B) Carbon dioxide C) Diamond D) Sodium chloride Answer: C
- Graphite conducts electricity because it has: A) Ions B) Delocalised electrons C) Weak covalent bonds D) A simple molecular structure Answer: B
- How many covalent bonds does each carbon atom form in diamond? A) 1 B) 2 C) 3 D) 4 Answer: D
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Covalent Bonding? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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