Have an account?
Skip to Content
Build your own quiz
20 questions
Show Answers
See Preview
- 1. Multiple Choice
Two charges Q1 and Q2 exert an energy of attraction when separated by a distance, d. Those same charges are then separated by a larger distance, 2d. What will happen to the energy of attraction between the two charges?The energy of attraction will remain the SAME, because the charges are the SAME.The energy of attraction will INCREASE, because the distance over which the charges must attract INCREASES.The energy of attraction will DECREASE, because the distance over which the charges must attract INCREASES.The energy of attraction will DECREASE, because the distance over which the charges must attract DECREASES. - 2. Multiple ChoiceTwo charges, Q1 and Q2, exert an energy of repulsion when separated by a distance, d. Two larger charges, Q3 and Q4, are separated by the same distance, d. How does the energy of repulsion between Q1 and Q2 compare to the energy of repulsion between Q3 and Q4?Energy of repulsion is the SAME, because the distance separating each pair of charges is the SAME.Energy of repulsion between Q1 and Q2 is SMALLER, because the charge of Q1 and Q2 is SMALLER.Energy of repulsion between Q1 and Q2 is LARGER, because the charge of Q1 and Q2 is LARGER.Energy of repulsion between Q1 and Q2 is SMALLER because the charge of Q1 and Q2 is LARGER.
- 3. Multiple ChoiceMendeleev organized the elementsby number of electrons.alphabetically by name.by increasing atomic mass and similar properties.by increasing atomic number and similar properties.
- 4. Multiple ChoiceWhich scientist discovered that the atomic number, rather than the atomic weight, is more responsible for the properties of an element? (Tragically this scientist died soon after as a soldier in WWI.)MoseleyBohrRutherfordMendeleev
- 5. Multiple ChoicePerhaps the greatest triumph of Mendeleev’s periodic table wasthe use of atomic numbers as an organizing criterion.the ability to predict electron configurations of elementsthe use of rows and columns to organize the elements.the prediction of the existence of undiscovered elements.
- 6. Multiple ChoiceThe atomic number specifies the number of ____ in the atom or ion.electrons or protonsprotonselectronsneutrons
- 7. Multiple ChoiceElements in a group (column) of the periodic table have similar chemical properties becausetheir valence electrons are all located in the same physical shell.they have the same total number of electrons.they have the same number of valence electrons.The statement is false; they do not have similar chemical properties.
- 8. Multiple ChoiceAn element with a single electron in its highest energy level is probablyan alkali metal.a transition metal.a nonmetal.an alkaline earth metal
- 9. Multiple ChoiceWhich symbols in the periodic table represent elements that are metals?X, R, P, and QX and QX and ZP and L
- 10. Multiple ChoiceAccording to the CVR model of the atom, what is the effective core charge, Zeff, of a 1s electron and 3s electron for a neutral atom of aluminum, respectively?+13; +13+13; +3+3; +13+3; +3
- 11. Multiple ChoiceWhich electrons account for many of the chemical and physical properties of elements?innermostoutermosttransitionalintermediate
- 12. Multiple ChoiceCl and S have very similar chemical propertiesTrue:
They have the same number of main energy levels.False:
They do NOT have the same number of valence electrons.True:
They have the same number of valence electrons.False:
They do NOT have the same number of main energy levels. - 13. Multiple ChoiceFluorine, chlorine and bromine are members ofthe noble gas group.the alkaline earth metal group.the alkali metal group.the halogen group.
- 14. Multiple ChoiceWhich of the following elements would be expected to resemble germanium (Ge) most closely in chemical properties?CuZnGaSn
- 15. Multiple ChoiceWhich of the following is an alkaline earth metal?MgFeNaSc
- 16. Multiple ChoiceThe inertness of the noble gases is due tothe special number of protons and neutrons.the unique structure of their nuclei.the bonds they form with other elements.the number and arrangement of their electrons.
- 17. Multiple ChoiceMuch research in nuclear chemistry is presently directed toward the artificial production of new elements. The atomic number of the noble gas AFTER radon is:104116117118
- 18. Multiple ChoiceWhich statement describing the periodic table is true?An element with an s2p5 valence shell is a noble gas.The first family of elements on the periodic table is the alkali metals.The main group elements are found in the s, p and d blocks.Rows of the periodic table are referred to as families.
- 19. Multiple ChoiceWhich of the following represents characteristics of the alkali metals?Forms positively charged ions with a charge of +2 due to the loss of 2 electrons.Forms positively charged ions with a charge of +1 due to the loss of 1 electron.Forms negatively charged ions with a charge of -1 due to the gain of 1 electron.Forms negatively charged ions with a charge of -2 due to the loss of 2 electrons.
- 20. Multiple ChoiceWhich of the following represents characteristics of group 1 elements?React violently with water to form hydrogen gas.React violently with water to form nitrogen gas.Extremely reactive non-metal elements.Extremely UNreactive, or inert, non-metal elements.
- Answer choicesTagsAnswer choicesTags