Chemistry CH.9

TRUE OR FALSE A red shirt appears red to our eyes because the shirt absorbs the red wavelengths of visible light.

• FALSE

How many core electrons are in a ground state atom of selenium? A. 28 B. 6 C. 16 D. 34 E. none of the above

•A. 28

TRUE OR FALSE A photon of red light contains the same amount of energy as a photon of blue light.

•FALSE

TRUE OR FALSE A photon represents the mass of a single particle of light.

•FALSE

TRUE OR FALSE Light is a type of matter.

•FALSE

TRUE OR FALSE The element manganese (symbol = Mn) has five valence electrons.

•FALSE

TRUE OR FALSE The heat you feel when you place your hand near a hot object is ultraviolet radiation.

•FALSE

TRUE OR FALSE. A principal shell with a value of n=3 would contain s, p, d, and f orbitals.

•FALSE

TRUE OR FALSE. The ground state is when an electron in an atom is excited into the lowest possible vacant orbital.

•FALSE

TRUE OR FALSE. The possible values for the principal quantum numbers are: n = 0, 1, 2, 3, 4.

•FALSE

TRUE OR FALSE. Visible light makes up the largest portion of the electromagnetic spectrum.

•FALSE

TRUE OR FALSE. When an atom absorbs energy, it often re-emits that energy as heat.

•FALSE

TRUE OR FALSE An orbital is a probability map showing exactly where an electron can be found in an atom.

•False

TRUE OR FALSE Bromine has 28 core electrons.

•TRUE

TRUE OR FALSE Wavelength of visible light determines color.

•TRUE

TRUE OR FALSE X-rays damage biological molecules.

•TRUE

TRUE OR FALSE. Each element produces its own unique and distinctive emission spectrum.

•TRUE

TRUE OR FALSE. The energy of each Bohr orbit increases with increasing value of "n", but levels become more closely spaced as "n" increases.

•TRUE

TRUE OR FALSE. The orbital diagram for fluorine shows 1 unpaired electron in a p orbital.

•TRUE

TRUE OR FALSE. Transition metal elements always contain at least one "d" block electron.

•TRUE

TRUE OR FALSE. •When the elements are arranged in order of increasing number of protons, certain sets of properties recur periodically.

•TRUE

Which orbital would the electron of a ground state hydrogen atom occupy? A.1s B. 1p C. 0s D. 2p E. none of the above

A. 1s

The lowest energy orbital in the quantum-mechanical model is the: A. 1s orbital. B. zero orbital. C. 1a orbital. D. 1p orbital. E. none of the above

A. 1s orbital

If the electron configuration of a ground state sodium atom is 1s22s22p63s1, the electron configuration of the sodium cation (Na+) would be: A. 1s22s22p6 B. 1s22s22p63s2 C. 1s12s22p63s1 D. 1s22s22p63s1 E. none of the above

A. 1s22s22p6

How many valence electrons are in a chlorine atom? A. 7 B. 10 C. 1 D. 17 E. none of the above

A. 7

The number of cycles of a wave that passes a stationary point in one second is called its: A. frequency. B. crest. C. wavelength. D trough. E. none of the above

A. Frequency

Which form of electromagnetic radiation has photons with the lowest energy? A. Radio Waves B. Microwaves C. X-rays D. Gamma Rays E. Infrared Radiation

A. Radio Waves

Which form of electromagnetic radiation has the longest wavelength? A. Radio Waves B. Microwaves C. X-rays D. Gamma Rays E. Infrared Radiation

A. Radio Waves

Which form of electromagnetic radiation has the lowest frequency? A. Radio Waves B. Microwaves C. X-rays D. Gamma Rays E. Infrared Radiation

A. Radio Waves

What is the element in which at least one electron is in the d-orbital? A. Sc B. Ar C. K D. Ca E. none of the above

A. Sc

How are wavelength and frequency of light related? A. Wavelength increases as the frequency decreases. B Wavelength is double the frequency. C Wavelength is one-half of the frequency. D. Wavelength is independent of frequency. E. Wavelength increases as frequency increases.

A. Wavelength increases as the frequency decreases.

The size of an atom generally increases: A. down a group and from right to left across a period. B. up a group and from left to right across a period. C. down a group and from left to right across a period. D. up a group and diagonally across the Periodic Table. E. up a group and from right to left across a period.

A. down a group and from right to left across a period.

Which subshell letter corresponds to a 4-leaf clover orbital pattern? A. s B. d C. f D. p E. not enough information

B. 2

Consider the electron configuration of the ion to determine which ion shown below has an incorrect ionic charge? A. Se2- B. Al3- C. Rb+ D. Ba2+ E. none of the above

B. Al3-

Which element is represented by the electron configuration 1s22s22p2? A. Be B. C C. He D. O E. none of the above

B. CARBON

When sunlight is passed through a prism, what is observed? A. nothing B. continuous spectrum C. bright spots and lines D. white light E. none of the above

B. Continuous Spectrum

Which of the following atoms is the smallest? A. Be B. Ne C. B D. O E. Li

B. Ne

Which color of the visible spectrum has the longest wavelength (750 nm)? A. orange B red C. violet D. yellow E. green

B. Red

Which of the following elements has the electron configuration of 3s23p4 in its outermost shell? A. Al B. S C. Si D. Cl E. none of the above

B. S

Which color of visible light has a wavelength in between that of orange and green light? A. violet B. yellow C. red D. blue E. none of the above

B. YELLOW

The principal quantum number (n): A. specifies the subshell of the orbital. B. specifies the principal shell of the orbital. C. specifies the 3-D shape of the orbital. D. specifies the maximum number of electrons. E. none of the above

B. specifies the principal shell of the orbital.

The "d" subshell can hold a maximum of ________ electrons. A. 5 B. 6 C. 10 D. 2 none of the above

C. 10

The n = ________ principal shell is the lowest that may contain a d-subshell. A. 1 B. 2 C. 3 D. 4 E. not enough information

C. 3

What is the correct order of the electromagnetic spectrum from shortest wavelength to longest? A. Radio Waves→X-rays→Ultraviolet Radiation→Visible Light→Infrared Radiation→Microwaves→Gamma Rays B. Visible Light→Infrared Radiation→Microwaves→Radio Waves→Gamma Rays→X-rays→Ultraviolet Radiation C. Gamma Rays→X-rays→Ultraviolet Radiation→Visible Light→Infrared Radiation→Microwaves→Radio Waves D. Gamma Rays→X-rays→Infrared Radiation→Visible Light→Ultraviolet Radiation→Microwaves→Radio Waves E. Gamma Rays→X-rays→Visible Light→Ultraviolet Radiation→Infrared Radiation→Microwaves→Radio Waves

C. Gamma Rays→X-rays→Ultraviolet Radiation→Visible Light→Infrared Radiation→Microwaves→Radio Waves

The subshell that has three orbitals and can hold up to six electrons is the: A. s subshell B. f subshell C. p subshell D. d subshell E. none of the above

C. P subshell

What is the electron configuration for Ga? A. 1s22s22p63s23p64s24d104p1 B. 1s22s22p63s23p63d104s24p6 C. 1s22s22p63s23p53d104s24p1 D. 1s22s22p63s23p64s23d104p1 E. none of the above

D. 1s22s22p63s23p64s23d104p1 (31)

How many electrons are unpaired in the orbitals of nitrogen? A. 5 B. 9 C. 14 D. 3 E. none of the above

D. 3

How many subshells are there in the n = 4 principal shell? A. 1 B. 2 C. 3 D. 4 E. not enough information

D. 4

Which of the following elements has the highest ionization energy? A. Ca B. Ba C. Al D. Ne E. Cl

D. Ne

Which one of the following is the correct orbital diagram for nitrogen? A. ↑↓ ↑↓ ↓ ↓ ↑ B. ↑↓ ↓↓ ↓ ↑ ↑ C. ↑↓ ↓↓ ↑ ↑ ↑ D. ↑↓ ↑↓ ↑ ↑ ↑ E.none of the above

D. ↑↓ ↑↓ ↑ ↑ ↑

Which of the following atoms has the greatest metallic character? A. Be B. Cu C. Au D. Ti E. Cs

E. Cs

Which of the statements about light is FALSE? A.. A characteristic feature of light that determines its color is its wavelength. B.......A packet of light energy is called a photon. C...Light travels much faster than sound. D..Light travels through space at a speed of 3.00 × 108 m/s. E.All of the above statements are true.

E.All of the above statements are true.

TRUE OR FALSE: The ionization energy of lithium is higher than that of fluorine.

FALSE