Periodic Table, Bonding and Calculations
30 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following sets of species contains ions with the same electron configuration?

  • Cl, Ar, K+ (correct)
  • Na, Mg, Al
  • Zn, Fe, Cu
  • Na+, He, F

Which iron-containing material has the greatest percentage of iron by mass?

  • Magnetite, $Fe_3O_4$
  • Goethite, $FeO(OH)$
  • Siderite, $FeCO_3$
  • Hematite, $Fe_2O_3$ (correct)

Which element is predicted to have the lowest electrical conductivity?

  • F (correct)
  • Si
  • Al
  • Na

Which of these is the correct formula for aluminum sulfite?

<p>$Al_2(SO_3)_3$ (C)</p> Signup and view all the answers

Ionic bonds consist of pairs of electrons attracted to adjacent nuclei.

<p>False (B)</p> Signup and view all the answers

Which element in Period 3 has the largest atomic radius?

<p>Sodium (B)</p> Signup and view all the answers

Which statement about Group 1 elements is correct?

<p>Atomic radius increases down the group. (B)</p> Signup and view all the answers

In the table regarding carbon-14, the atomic number is ______.

<p>6</p> Signup and view all the answers

What is the name of the compound with the formula $NF_3$ listed in the table?

<p>Nitrogen Trifluoride</p> Signup and view all the answers

In the table with the solubility, conductivity and malleability variables, what is the chemical name for the variable listed as A?

<p>Diamond</p> Signup and view all the answers

In the table shown, what corresponds to a diamonds melting point?

<p>High</p> Signup and view all the answers

What is the definition of an allotrope?

<p>Allotropes are different structural forms of the same element.</p> Signup and view all the answers

What are nanomaterials?

<p>Nanomaterials are materials with at least one dimension between 1-100 nm, which can exhibit different properties compared to bulk materials.</p> Signup and view all the answers

Match the subatomic particle to its charge:

<p>Proton = Positive Electron = Negative Neutron = Neutral</p> Signup and view all the answers

In Portland cement production, heating limestone results in the release of carbon ______.

<p>dioxide</p> Signup and view all the answers

Why do boron, aluminum, gallium, and indium occur together in the same group in the Periodic Table?

<p>Neutral atoms of each of the elements have the same number of electrons in their outer shell. (A)</p> Signup and view all the answers

What state is a compound expected to be at room temperature if it is formed between a Group 15 element and a Group 17 element?

<p>Possibly be a gas or a liquid at room temperature (D)</p> Signup and view all the answers

Which statement accurately describes calcium atoms and calcium ions?

<p>Have the same number of protons (D)</p> Signup and view all the answers

If element Y has an atomic mass of 25 and its nucleus contains 12 neutrons, what is the most likely formula of its chloride?

<p>YCl₃ (B)</p> Signup and view all the answers

How would you order the bond strengths in the following substances: CO₂(g), HCl(g), CaO(s), Na(s)?

<p>covalent, covalent, ionic, metallic (A)</p> Signup and view all the answers

Which of the following statements about selenium is NOT true?

<p>Selenium is in period 3, group 16 in the Periodic Table. (A)</p> Signup and view all the answers

Which accurately explains why potassium fluoride is a solid with a high melting point?

<p>There are strong electrostatic forces between the potassium ions and fluoride ions in the ionic lattice units. (A)</p> Signup and view all the answers

Which of the following species does NOT have the original electronic configuration as an oxide ion, O²⁻?

<p>A sodium ion, Na⁺ (D)</p> Signup and view all the answers

Which of the following substances conduct electricity?

<p>II, III and IV only (B)</p> Signup and view all the answers

Covalent and ionic bonds are much stronger than the bonds arising from intermolecular forces.

<p>True (A)</p> Signup and view all the answers

The formula for iron (II) bicarbonate is _______.

<p>Fe(HCO3)2</p> Signup and view all the answers

Diphosphorus trisulfide has the formula _______.

<p>P2S3</p> Signup and view all the answers

Atoms W, X, Y, and Z have the following electron configurations: W: 2,8,2; X: 2,5; Y: 2,8; Z: 2,8,7. Which of these elements is the least reactive?

<p>Y</p> Signup and view all the answers

Neon has high ionization energy but sodium, with one more electron, has a much lower ionization energy--explain why.

<p>Neon has a full valence (outer) shell whereas sodium would need to lose an electron in a new shell.</p> Signup and view all the answers

Match the solids R, S, T, and U with their classification based on their properties:

<p>R = Network covalent S = Ionic T = Molecular covalent U = Metallic</p> Signup and view all the answers

Flashcards

Isoelectronic Species

Species with the same number of electrons and thus the same electron configuration.

Electrical Conductivity

The ability of a material to conduct electrical current

Covalent Bonds

Bonds formed by the sharing of electron pairs between atoms.

Atomic Radius

The distance from the nucleus to the outermost electron shell of an atom.

Signup and view all the flashcards

Electronegativity

A measure of how strongly an atom attracts electrons in a chemical bond.

Signup and view all the flashcards

Atomic Number

Number of protons in the nucleus of an atom, determines the element's identity.

Signup and view all the flashcards

Mass Number

Number of protons plus neutrons in the nucleus of an atom

Signup and view all the flashcards

Electron Dot Diagrams

Diagrams showing valence electrons as dots around an atomic symbol.

Signup and view all the flashcards

Melting Point

Temperature at which a substance changes from a solid to a liquid.

Signup and view all the flashcards

Solubility

Property of a substance to dissolve in a solvent.

Signup and view all the flashcards

Halogens

Halogens are in group 17 of the periodic table.

Signup and view all the flashcards

Ionization Energy

The energy required to remove an electron from a gaseous atom.

Signup and view all the flashcards

Isotopes

Atoms of the same element with different numbers of neutrons.

Signup and view all the flashcards

Relative Atomic Mass

The weighted average of the masses of the isotopes of an element.

Signup and view all the flashcards

Nanomaterials

Substances with dimensions on the scale of 1-100 nanometers.

Signup and view all the flashcards

Periodic Table Groups

Elements in the same group have the same number of valence electrons.

Signup and view all the flashcards

Group 15 & 17 Compounds

A compound made of a group 15 element and a group 17 element is likely a gas or liquid at room temperature.

Signup and view all the flashcards

Ion Formation

Metals react by losing electrons to form positive ions while non-metals react by gaining electrons to form negative ions.

Signup and view all the flashcards

Ionic Bond Strength

Ionic bonds involve electrostatic forces in lattice units.

Signup and view all the flashcards

Chemical Reactivity

Determined by number of valence electrons.

Signup and view all the flashcards

Graphite vs. Carbon Dioxide

Graphite has delocalized electrons, while carbon dioxide does not.

Signup and view all the flashcards

Ionic Configuration

Ions are formed when atoms gain or lose electrons to achieve a stable electron configuration.

Signup and view all the flashcards

Solid Types

Ionic, metallic, network covalent, molecular covalent.

Signup and view all the flashcards

Study Notes

  • This is Task 1 about the periodic table, bonding and calculations.
  • The content covers properties and structures of atoms and materials (unit 1).
  • The paper includes multiple-choice section and short answer section.
  • The multiple-choice section is worth 10 marks.
  • The short answer section is worth 40 marks.
  • The total mark for the paper is 50.
  • The time permitted for this entire task is 55 minutes.
  • Materials provided by the teacher include the question/answer booklet
  • Materials required/recommended for the task include
    • Pens, blue/black preferred
    • Pencils (including colored)
    • Sharpener
    • Correction fluid/tape
    • Eraser
    • Ruler
    • Highlighters
    • Non-programmable calculators

Section A - Multiple Choice Questions

  • This section is worth 10 marks.
  • Circle the letter to indicate the answer for each question.
  • No marks are awarded completing more than one answer for a question.
  • Each question has a mark value of one mark.
  • The questions cover topics such as:
    • Elements in the same group of the periodic table
    • Properties of compounds formed by group 15 and group 17 elements
    • Properties of calcium atoms and calcium ions
    • Formula prediction based on atomic mass and neutron count
    • Strong bonds in various substances
    • Statements about selenium, potassium fluoride, and electronic configurations
    • Electrical conductivity of different substances
    • Statements about chemical bonds

Section B - Short answer section

  • This section is worth 40 marks
  • Answer all questions and write your answers in the spaces provided
  • Questions cover the following key areas:
  • Naming compounds and writing their formulas
  • Electron configurations and reactivity
  • Ionization energy
  • Drawing electron dot diagrams
  • Classifying solids based on their properties
  • Stoichiometry calculations
  • Properties and uses of graphite and carbon dioxide

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Description

This task covers the periodic table, bonding, and related calculations. It includes multiple-choice and short answer questions. It assesses understanding of atomic structure and material properties.

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser