Chapter 9 Vocabulary and Activity Worksheet (3)

I the ability to remove an electron from an atom is

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i. The ability to remove an electron from an atom is called? ionization j. Ionization energy is defined as the energy required to remove an electron from an atom in its ground state. k. When an electron is removed from an atom the remaining charged particle is called an ion. l. Bohr’s theory states that there are distinct energy levels in an atom called shells. m. Bohr said the electrons in the outermost energy level were? Valence electrons n. The valence electrons will always be in the outer most shell, the Valence shell . o. The nucleus and any internal electrons, the kernel, are shielded by the valence shell. p. The electrons that are not in the outermost principle shell are called core electrons q. If the two electrons in the orbital have the same set of four quantum #, they are said to be __________. r. The representation of the arraignment of electrons around the nucleus of an atom is called the electron configuration. s. The energy needed to remove the most loosely held electron from an atom is called the first ionization energy. t. "When filling orbitals of equal energy, electrons fill them singly first with parallel spins." This is known as hunds rule. u. v. 4. Answer the following: a. b. Which color of the visible spectrum has the shortest wavelength (400 nm)? c. violet d. Which color of the visible spectrum has the longest wavelength (750 nm)? Red e. f. What is the correct order of the electromagnetic spectrum from shortest wavelength to longest? Gamma rays → X rays →_ Ultraviolet light → Visible light → Infrared radiation→ Microwaves→ radio waves g. Which form of electromagnetic radiation has photons with the highest energy? Gamma rays h. When sunlight is passed through a prism, what is observed? Dispersion of Light i. The principal quantum number specifies the principal shell of the orbital. j. How many subshells are there in the n = 4 principal shell? 4 k. The n = 3 principal shell is the lowest that may contain a d-subshell. l. Which subshell letter corresponds to a spherical orbital? s m. Which subshell letter corresponds to a 4-leaf clover orbital pattern? d n. The "d" subshell can hold a maximum of 10 electrons. o. How many electrons can exist in an orbital? 2
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p. The lowest energy orbital in the quantum-mechanical model is the 1s q. Which orbital would the electron of a ground state hydrogen atom occupy? 1s r. How many electrons are unpaired in the orbitals of carbon? 2 s. An accepted abbreviation format is to write an electron configuration that includes a noble gas symbol in brackets. If you were writing an electron configuration for a bromine atom, which elemental symbol would you place in the bracket? Ar t. Which element is represented by the electron configuration 1s22s22p2? Carbon u. What is the electron configuration for Kr? [Ar] 3d10 4s2 4p6 v. What is the electron configuration for Ga? 1s22s22p63s23p64s23d104p1 w. How many valence electrons are in a chlorine atom? 7 x. If the electron configuration of a ground state potassium atom is 1s22s22p63s1, the electron configuration of the potassium cation (K+) would be: 1s22s22p6
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