Question

Which of the following regions of the electromagnetic spectrum has the highest frequency? Select one: A....

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

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