What are isotopes?
Aug 2025 R Chem MC

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Chemistry
•
12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.
2.
FLASHCARD QUESTION
Front
What is the significance of protons in an atom?
Back
Protons determine the atomic number of an element and its identity.
3.
FLASHCARD QUESTION
Front
What is a metallic bond?
Back
A metallic bond is a type of chemical bond that occurs between metal atoms, characterized by a 'sea of electrons' that are free to move.
4.
FLASHCARD QUESTION
Front
What is STP in chemistry?
Back
STP stands for Standard Temperature and Pressure, which is defined as 0 degrees Celsius (273.15 K) and 1 atmosphere (101.3 kPa) of pressure.
5.
FLASHCARD QUESTION
Front
How can solubility differentiate between NaCl and AgCl?
Back
NaCl is soluble in water, while AgCl is not, allowing for differentiation based on solubility.
6.
FLASHCARD QUESTION
Front
What is a pure substance?
Back
A pure substance is a material that has a constant composition and consistent properties throughout.
7.
FLASHCARD QUESTION
Front
What is the difference between a mixture and a pure substance?
Back
A mixture contains two or more substances that retain their individual properties, while a pure substance has a uniform and definite composition.
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