Isotopes
Akopọ
You might expect every atom of an element to be identical, but many elements come in slightly different versions. These versions, called isotopes, have the same chemistry but different masses. Chlorine, for example, is a blend of two isotopes, which is why its relative atomic mass is not a whole number.
In this lesson you will learn exactly what an isotope is, why isotopes of an element behave identically in chemical reactions, and how their existence explains the average masses you see in the Periodic Table.
Awọn Afojusun
- Define isotopes as different atoms of the same element that have the same number of protons but different numbers of neutrons.
- Interpret and use symbols for atoms, e.g. ¹²₆C, and ions, e.g. ³⁵₁₇Cl⁻.
- [Supplement] State that isotopes of the same element have the same chemical properties because they have the same number of electrons and therefore the same electronic configuration.
- [Supplement] Calculate the relative atomic mass of an element from the relative masses and abundances of its isotopes.
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Oriire fun ipari ẹkọ lori Isotopes. 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.
- Isotopes of an element have the same number of: A. Neutrons B. Protons C. Nucleons D. Mass numbers Answer: B
- Isotopes of an element differ in their number of: A. Protons B. Electrons C. Neutrons D. Shells Answer: C
- Why do isotopes of an element react in the same way? A. They have the same number of neutrons B. They have the same electron arrangement C. They have the same mass D. They are radioactive Answer: B
- How many neutrons are in an atom of chlorine-37? (proton number 17) A. 17 B. 18 C. 20 D. 37 Answer: C
- Why is the relative atomic mass of chlorine 35.5 and not a whole number? A. Chlorine has half a neutron B. It is an average of its isotopes C. Chlorine has no isotopes D. The protons vary Answer: B
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.
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Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Isotopes? 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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