Advanced Chemistry All Answers Graded A+
1. What is an atom? - Answer: The smallest particle of an element that maintains its identity in chemical reactions.
2. Define atomic mass. - Answer: Atomic mass is the weighted average of the masses of the isotopes of an element.
3. What does atomic n...
Advanced Chemistry All Answers Graded A+
1. What is an atom?
- Answer: The smallest particle of an element that maintains its identity in chemical reactions.
2. Define atomic mass.
- Answer: Atomic mass is the weighted average of the masses of the isotopes of an element.
3. What does atomic number represent?
- Answer: Atomic number indicates the number of protons in the nucleus of an atom of an element.
4. Explain what a group or column is in the periodic table.
- Answer: A group or column in the periodic table is a vertical arrangement of elements where each
constituent element shares similar chemical and physical properties.
,5. Define period or row in the periodic table.
- Answer: A period or row in the periodic table is a horizontal arrangement of elements.
6. What is chemistry?
- Answer: Chemistry is the study of the composition of matter and the changes it undergoes.
matter ✔️anything that has mass and occupies space
matter ✔️anything that has mass and occupies space
scientific notation ✔️an expression of numbers in the form m x 10^n where m is equal to or greater
than one and less than 10, and n is an integer
scientific notation ✔️an expression of numbers in the form m x 10^n where m is equal to or greater
than one and less than 10, and n is an integer
, weight ✔️a force the measure the pull of gravity on a given mass
weight ✔️a force the measure the pull of gravity on a given mass
mass number ✔️the total number of protons and neutrons the nucleus of an atom
mass number ✔️the total number of protons and neutrons the nucleus of an atom
isotope ✔️atoms of the same element that have the same atomic number but different atomic masse
due to a different number of neutrons
isotope ✔️atoms of the same element that have the same atomic number but different atomic masse
due to a different number of neutrons
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