Which of the following regions of the electromagnetic spectrum has the highest frequency?
Select one:
A. Visible light
B. Microwaves
C. Infrared radiation
D. Ultraviolet radiation
onization energy is the energy required to add an electron to an atom in the gaseous state.
Select one:
True
False
In the Bohr model of the atom, the greatest energy would be emitted if an electron relaxed from the n = 5 orbit to which orbit?
Select one:
A. n = 2
B. n = 9
C. n = 3
D. n = 1
Which element has the electron configuration 1s22s22p63s2?
Select one:
A. Ne
B. O
C. Mg
D. Na
Which element has an outer electron configuration 3s23p3?
Select one:
A. P
B. N
C. As
D. B
Which noble gas does not have eight valence electrons?
Select one:
A. He
B. Ne
C. Kr
D. Ar
Which of the following are characteristic of quantum mechanical orbitals?
Select one:
A. Orbitals show pathways that electrons follow
B. Orbitals are probability maps
C. Orbitals are circular paths
D. Orbitals are a fixed distance from the nucleus
Which of the following elements has the highest ionization energy?
Select one:
A. K
B. Rb
C. Li
D. Na
Alkali metals acquire a noble gas electron configuration by gaining or losing how many electrons?
Select one:
A. Losing one electron
B. Gaining two electrons
C. Gaining one electron
D. Losing two electrons
Which ion has the electron configuration 1s22s22p6?
Select one:
A. S2-
B. Mg2+
C. K+
D. Ca2+
Which of the following regions of the electromagnetic spectrum has the highest energy?
Select one:
A. Visible light
B. Gamma rays
C. Ultraviolet radiation
D. X rays
How many orbitals are in the principal shell n = 3?
Select one:
A. 1
B. 9
C. 16
D. 4
Helium is a reactive and flammable gas.
Select one:
True
False
Elements with electron configurations close to the noble gases are very reactive.
Select one:
True
False
When two electrons occupy the same orbital, they have the same spin.
Select one:
True
False
Which of the following elements has the smallest atomic size?
Select one:
A. F
B. O
C. C
D. N
How many subshells are in the principal shell n = 3.
Select one:
A. 1
B. 2
C. 4
D. 3
A fluorine atom has nine valence electrons.
Select one:
True
False
Which of the following regions of the electromagnetic spectrum has the highest frequency? Select one: A....
An atom of which of the following elements has the highest electron affinity? Select one: a. Br b. Cl c. Rb d. As e. Se An atom of which of the following elements is not diamagnetic in the ground state? Select one: a. Rn b. Ca c. Pt d. Cd e. All are diamagnetic. The general electron configuration for the outermost electrons of the halogens is Select one: a. ns2np4 b. ns2np5 c. ns2np6 d. ns2np2 e. ns2np3 What...
Which of the following types of radiation has the highest velocity? Select one: A. infrared B. X rays C. ultraviolet D. visible E. All radiation has the same velocity.
Select True or False for the following statements about electromagnetic waves. True False Blue light has a higher frequency than X-rays. True False X-rays travel in vacuum at a higher speed than the visible light. True False The sun's radiation is most intense in the infrared region. True False Gamma rays can be produced in transitions of an atomic nucleus from one state to another. True False Ultraviolet radiation causes common sunburn. True False A vertical automobile antenna is sensitive to electric fields polarized horizontally. True...
answer all please 11 Rank the following types of electromagnetic radiation from shortest wavelength to longest wavelength Visible, ultraviolet, microwave, infrared, x-ray A X-ray visible ultraviolet <infrared <microwave B X-ray ultraviolet visible <microwave <infrared CX-ray ultraviolet < visible <infrared < microwave D. infrared microwave <ultraviolet visible <X-ray E microwave <infrared <ultraviolet < visible <X-ray 12. What is the energy of a photo of yellow light whose wavelength is 589 nm? A 3.38 x 10-19 B 3.38 x 10-10 C. 1.77...
Example 1: The electromagnetic spectrum of light is often arranged in terms of frequency. Which one of the following has the highest frequency? a. Visible light b. Microwaves c. infrared light d. Gamma rays e. radio waves f. X-rays g. Ultraviolet light Example 2: The electromagnetic spectrum of light is often arranged in terms of wavelength. Which one of the following has the longest wavelength? a. Visible light b. Microwaves c. infrared light d. Gamma rays e. radio waves f. X-rays g. Ultraviolet light Example 3: Which one of the following has the fastest speed? a. Visible...
3) Rank the following orbitals in order of increasing energy: 3s, 2s, 2p, 4s, 3p, ls, and 3d. 4) How many orbitals in an atom can have the following quantum number or designation? a. 3p_ b. 7s c. 4p. d. 5d . e. 5f f. n=5 5) Answer the following questions by filling in the space: a) The quantum number n describes the of an atomic orbital. b) The shape of an atomic orbital is given by the quantum number...
Select True or False for the following statements about electromagnetic waves. 1. The sun's radiation is most intense in the visible region. 2. X-rays can be produced in transitions involving inner electrons in an atom. 3. Gamma rays travel in vacuum at the same speed as the visible light. 4. Blue light has a longer wavelength than red. 5. Ultraviolet radiation causes common sunburn. 6. A vertical automobile antenna is sensitive to electric fields polarized horizontally. 7.Radio waves have wavelengths...
20. An atom of which of the following elements has the smallest ionization energy? A. CI C. Si B. P DS 21. An atom of which of the following elements has the largest second ionization energy? A. Cs С Ро B. Pb D. Ba Q89. 22. Which of the following forms the most stable anion in the gas phase? A. CI (electron affinity -349 kJ/mol) B. S (electron affinity = -200 kJ/mol) CO (electron affinity = -141 kJ/mol) D. C(electron...
QUESTION 52 Which of the following is/are true? Select all that apply. Ti has 2 valence electrons and 20 core electrons Bi has 5 valence electrons. 3 of which are unpaired Avalence electron in its ground state in Sb could have the quantum numbers n-5.1-2. m o ms - 1/2 Ca and Zn have the same number of valence electrons QUESTION 53 Which of the following is/are true? Select all that apply The ground-state electron configuration for B.Sis[Xe] 4:14 10...
3. Write Lewis structures for the following. What molecular shape does each have? Circle the structures you believe to be polar. What is they hybridization around the central atoms? a. HNNH b. PCI c. Sicu d. So, e. CH2Br2 4. Describe how the movement of electrons about a hydrogen atom gives us a line sprectrum. (Bohr model) comic radius 5. List the possible orbitals available in the 3 energy level. 6. Arrange the following types of waves from shortest wavelength...