Isotopes and Isobars
Chemistry ⇒ Atomic Structure and the Periodic Table
Isotopes and Isobars starts at 8 and continues till grade 12.
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A sample contains two isotopes of chlorine: ³⁵Cl (75%) and ³⁷Cl (25%). Calculate the average atomic mass of chlorine.
Explain why isobars have different chemical properties.
Explain why isotopes of the same element have similar chemical properties.
Give an example of a pair of isotopes and a pair of isobars.
If an atom has 11 protons and 12 neutrons, what is its mass number?
If an atom has 17 protons and 20 neutrons, what is its mass number?
If two atoms have the same mass number but different atomic numbers, what are they called?
Isotopes of chlorine are ³⁵Cl and ³⁷Cl. What is the number of neutrons in ³⁷Cl?
Isotopes of hydrogen are protium, deuterium, and tritium. Which one has the highest number of neutrons?
State one difference between isotopes and isobars.
What are isotopes?
Which isotope of hydrogen is radioactive?
