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Intro to Chemistry Exam 1 || With Questions & Answers (Graded A+)
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Intro to Chemistry Exam 1 || With Questions & Answers (Graded A+) Intro to Chemistry Exam 1 || With Questions & Answers (Graded A+) What is Matter? - ANSWER - ______ is anything that occupies space and has mass. What is Mass? - ANSWER - ____ is the amount of matter in an object; never change...

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  • September 11, 2024
  • 17
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • name four4 metalloids
  • name four4 halogens
  • name four4 alkali metals
  • define radioisotope
  • define trace elements
  • intro to chemistry exam 1 questions and answers
  • name fourteen14 transition metals

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Intro to Chemistry Exam 1 || With
Questions & Answers (Graded A+)




Conceptial Researchers 2024 conceptialresearch@gmail.com

, Intro to Chemistry Exam 1 || With
Questions & Answers (Graded A+)
What is Matter? - ANSWER - ______ is anything that occupies space and has mass.

What is Mass? - ANSWER - ____ is the amount of matter in an object; never
changes

What is Weight? - ANSWER - _______ is the gravitational force exerted on an
object; can change

Define: Element - ANSWER - _______ is made up of molecules/atoms of the same
kind; cannot be chemically subdivided into simpler substances

Define: Compound - ANSWER - ________ is made up of molecules/atoms of two or
more kinds; can be chemically subdivided into simpler substances

Define: Atom - ANSWER - A/An ____ is the unit from which matter is made; limit of
chemical subdivision; smallest particle of an element; composed of protons,
neutrons, and electrons

Define: Nucleus - ANSWER - The _______ is the central core of atoms that contains
protons and neutrons; has a positive(+) charge equal(=) to the number of protons

Define: Electrons - ANSWER - _________ move in a circular orbit around the
positive(+) nucleus

Define: Atomic Weight - ANSWER - ______ ______ is the relative weight of atoms in
terms of C12; the sum of protons and neutrons

Define: Gram Atomic Weight - ANSWER - ____ ______ ______ is the atomic weight
expressed in grams

Define: Molecule - ANSWER - A/An ________ is the smallest unit of a compound

Define: Molecular Weight - ANSWER - ________ ______ is the sum of the atomic
weights of all the atoms forming the molecule

Define: Gram Molecular Weight - ANSWER - The _________ ______ is the
molecular weight of a compound expressed in grams

Define: Electrolyte - ANSWER - A/An ___________ is a substance whose solution
will conduct an electric current

Define: Acid - ANSWER - ____ is a substance that yields hydrogen ions in solution

Define: Base - ANSWER - ____ is a substance that yields a hydroxyl (OH-) ion in
solution; substance that can accept a proton

, Define: Salt - ANSWER - ____s are compounds formed by replacing the hydrogen of
an acid with a metal

Define: Radical / Polyatomic Groups - ANSWER - A _______ or __________ _____
is a group of elements that behave like a single element

Define: Valence - ANSWER - _______ is the property of an element that determines
the number of hydrogen (H) atoms that its atom can combine with or displace

Define: Chemistry - ANSWER - _________ is the study of matter

Define: Trace Elements - ANSWER - _____ ________ are elements that are
essential to the body but are found in minute quantities

Define: Isotope - ANSWER - A/An _______ is a different form of the same element;
same atomic number but a different atomic weight

Define: Atomic Number - ANSWER - ______ ______ is the number of protons in the
nucleus

Define: Radioisotope - ANSWER - A/An ____________ is an unstable isotope

Define: Periodic Table - ANSWER - The ________ _____ is the arrangement of the
elements in a table based on the periodic law

Name the Nine(9) Element Groups - ANSWER - 1. Alkali Metals
2. Alkaline Earth Metals
3. Transition Metals
4. 'Other' Metals
5. Metalloids
6. Non-Metals
7. Halogens
8. Noble Gases
9. Rare Earth Elements

Name Four(4) Alkali Metals - ANSWER - Lithium
Sodium
Potassium
Cesium

Name Four(4) Alkaline Earth Metals - ANSWER - Magnesium
Calcium
Barium
Radium

Name Fourteen(14) Transition Metals - ANSWER - Chromium Manganese Iron
Cobalt
Nickel Copper Zinc Molybdenum
Silver Cadmium Tungsten Platinum

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