Podcast
Questions and Answers
What is the primary way the elements are arranged in the periodic table?
What is the primary way the elements are arranged in the periodic table?
- In order of increasing atomic number (correct)
- Alphabetical order by symbol
- By the number of electrons in the outermost energy level
- By similarities in chemical properties
Who is credited with creating the first widely recognized periodic table?
Who is credited with creating the first widely recognized periodic table?
- Isaac Newton
- Dmitri Mendeleev (correct)
- Albert Einstein
- Marie Curie
What is the term for the energy required to remove one electron from an atom in the gas phase?
What is the term for the energy required to remove one electron from an atom in the gas phase?
- Electron Affinity
- Atomic Radius
- Electronegativity
- Ionisation Energy (correct)
What is the term for a measure of the size of an atom?
What is the term for a measure of the size of an atom?
What is the term for the tendency of an atom to attract electrons in a chemical bond?
What is the term for the tendency of an atom to attract electrons in a chemical bond?
What is the purpose of organizing the elements into vertical columns called groups?
What is the purpose of organizing the elements into vertical columns called groups?
How many groups are there in the periodic table?
How many groups are there in the periodic table?
What information can be determined from the period number of an element in the periodic table?
What information can be determined from the period number of an element in the periodic table?
What is the general trend in atomic radius across a period from left to right?
What is the general trend in atomic radius across a period from left to right?
What is the general trend in electronegativity down a group?
What is the general trend in electronegativity down a group?
Which group of elements is known for being very reactive?
Which group of elements is known for being very reactive?
What is the general trend in ionisation energy across a period from left to right?
What is the general trend in ionisation energy across a period from left to right?
What is the general trend in melting and boiling points across a period?
What is the general trend in melting and boiling points across a period?
What is the characteristic of the noble gases?
What is the characteristic of the noble gases?
What is the electron configuration of phosphorus (P)?
What is the electron configuration of phosphorus (P)?
Which element in period 3 has a higher ionisation energy, sodium (Na) or chlorine (Cl)?
Which element in period 3 has a higher ionisation energy, sodium (Na) or chlorine (Cl)?
What is the general trend in electrical conductivity across a period from left to right?
What is the general trend in electrical conductivity across a period from left to right?
Which group of elements is characterized by having full valence shells?
Which group of elements is characterized by having full valence shells?
What is the general trend in atomic radius down a group?
What is the general trend in atomic radius down a group?
What is the reason for the similar chemical properties of elements in the same group?
What is the reason for the similar chemical properties of elements in the same group?
What is the primary benefit of Mendeleev's periodic table?
What is the primary benefit of Mendeleev's periodic table?
Which of the following properties is NOT a measure of an atom's ability to attract or gain electrons?
Which of the following properties is NOT a measure of an atom's ability to attract or gain electrons?
What is the significance of the period number in the periodic table?
What is the significance of the period number in the periodic table?
Why are elements in the same group organized in vertical columns?
Why are elements in the same group organized in vertical columns?
What is the purpose of organizing the elements into horizontal rows called periods?
What is the purpose of organizing the elements into horizontal rows called periods?
What is the relationship between the electron configuration of an element and its position in the periodic table?
What is the relationship between the electron configuration of an element and its position in the periodic table?
What is a key reason why Mendeleev's periodic table was successful?
What is a key reason why Mendeleev's periodic table was successful?
What is the primary advantage of using the periodic table to organize the elements?
What is the primary advantage of using the periodic table to organize the elements?
Which of the following trends in the periodic table is an exception to the general trend of increasing ionisation energy across a period?
Which of the following trends in the periodic table is an exception to the general trend of increasing ionisation energy across a period?
What is the main reason for the variation in the formulas and properties of chlorides and oxides across a period?
What is the main reason for the variation in the formulas and properties of chlorides and oxides across a period?
Which of the following groups is characterised by having a full valence shell and being unreactive?
Which of the following groups is characterised by having a full valence shell and being unreactive?
What is the primary reason for the reactivity of the elements in group 17?
What is the primary reason for the reactivity of the elements in group 17?
Which of the following statements is true about the melting and boiling points of the elements in a period?
Which of the following statements is true about the melting and boiling points of the elements in a period?
What is the main reason for the similar chemical properties of elements in the same group?
What is the main reason for the similar chemical properties of elements in the same group?
What is the primary reason for the periodic trends observed in the periodic table?
What is the primary reason for the periodic trends observed in the periodic table?
Which of the following elements would have the highest electron affinity?
Which of the following elements would have the highest electron affinity?
What is the relationship between the electron configuration of an element and its position in the periodic table?
What is the relationship between the electron configuration of an element and its position in the periodic table?
Which of the following elements would have the highest ionisation energy?
Which of the following elements would have the highest ionisation energy?
What is the significance of the groups in the periodic table?
What is the significance of the groups in the periodic table?
What is the general trend in electronegativity across a period from left to right?
What is the general trend in electronegativity across a period from left to right?
Which of the following elements would have the lowest atomic radius?
Which of the following elements would have the lowest atomic radius?
What is the significance of the periods in the periodic table?
What is the significance of the periods in the periodic table?
What is the reason for the decrease in atomic radius across a period from left to right?
What is the reason for the decrease in atomic radius across a period from left to right?
Which group of elements is characterized by having seven valence electrons?
Which group of elements is characterized by having seven valence electrons?
What is the general trend in electrical conductivity of metals across a period from left to right?
What is the general trend in electrical conductivity of metals across a period from left to right?
What is the reason for the similar chemical properties of elements in the same group?
What is the reason for the similar chemical properties of elements in the same group?
What is the general trend in melting and boiling points across a period?
What is the general trend in melting and boiling points across a period?
Which element in period 3 would have a lower ionisation energy?
Which element in period 3 would have a lower ionisation energy?
What is the primary advantage of using the periodic table to organize the elements?
What is the primary advantage of using the periodic table to organize the elements?
What is the primary benefit of Mendeleev's periodic table?
What is the primary benefit of Mendeleev's periodic table?
What is the relationship between the electron configuration of an element and its position in the periodic table?
What is the relationship between the electron configuration of an element and its position in the periodic table?
What is the significance of the groups in the periodic table?
What is the significance of the groups in the periodic table?
What is the significance of the periods in the periodic table?
What is the significance of the periods in the periodic table?
Why are elements in the same group organized in vertical columns?
Why are elements in the same group organized in vertical columns?
What is the primary reason for the reactivity of the elements in group 17?
What is the primary reason for the reactivity of the elements in group 17?
Which of the following elements would have the highest electron affinity?
Which of the following elements would have the highest electron affinity?
