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Questions and Answers
What is the typical state of most metals at room temperature?
What is the typical state of most metals at room temperature?
Which of the following statements is true about the elements in the same group on the periodic table?
Which of the following statements is true about the elements in the same group on the periodic table?
What is true regarding the atomic structure of elements on the periodic table?
What is true regarding the atomic structure of elements on the periodic table?
What represents the elements on the periodic table?
What represents the elements on the periodic table?
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What does the atomic number of an element indicate?
What does the atomic number of an element indicate?
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What is an element defined as?
What is an element defined as?
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What is the main component that determines the mass of an atom?
What is the main component that determines the mass of an atom?
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Which of the following best describes a monatomic substance?
Which of the following best describes a monatomic substance?
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What term refers to a molecule composed of two atoms?
What term refers to a molecule composed of two atoms?
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How does the periodic table organize elements?
How does the periodic table organize elements?
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What characteristic is shared by all elements on the periodic table?
What characteristic is shared by all elements on the periodic table?
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Which of these statements is true regarding the atomic structure?
Which of these statements is true regarding the atomic structure?
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What are the two main categories of elements in the periodic table?
What are the two main categories of elements in the periodic table?
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Study Notes
Atoms and Elements
- All matter is made up of atoms.
- An element is a pure substance made of only one type of atom.
- Atoms cannot be created, destroyed, or broken down further.
- Elements are organised on the periodic table according to their chemical and physical properties.
- Atoms consist of a nucleus (protons and neutrons) and surrounding electrons.
- The nucleus is positively charged.
- Electrons are negatively charged.
- Atoms have an equal number of protons and electrons, making them electrically neutral.
Periodic Table
- The periodic table organises elements based on the size of their atoms.
- Elements are represented by their symbols (e.g., H for hydrogen).
- Elements on the table are arranged in periods (rows) and groups (columns).
- Periods and groups have similar properties.
- Groups on the periodic table are represented by the same number of electrons in the atom's outermost shell.
- Elements in the same group have similar chemical and physical properties.
- Metals are generally solids at room temperature. Their atoms bond closely together in a lattice structure.
- Non-metals are generally gases at room temperature.
- Monatomic – consists of a single atom.
- Diatomic – a molecule made from two atoms.
Molecules
- A molecule is a group of two or more atoms bonded together.
- Something can be a molecule and an element at the same time.
- For example, oxygen gas is both a molecule and an element.
Success Criteria
- Define and describe the key features of the periodic table, including periods, groups, elements, monatomic gases, and diatomic gases.
- Relate the atomic number and mass number of an element to the number of subatomic particles.
Learning Intentions
- Atoms make up all matter.
- An element has one type of atom that makes up a substance.
- The periodic table arranges elements according to their chemical and physical properties.
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Description
Test your knowledge of atoms and elements with this quiz. Explore concepts like the structure of atoms, the organization of the periodic table, and the properties of different elements. Perfect for beginners or those refreshing their scientific knowledge!
