Exam 7: Atomic Structure and Periodicity

How many of the following is/are incorrect? i.The importance of the equation E = mc² is that energy has mass. Ii.Electromagnetic radiation can be thought of as a stream of particles called photons. Iii.Electromagnetic radiation exhibits wave properties. Iv.Energy can only occur in discrete units called quanta.

A specific wave function is called a(n)__________.

Mendeleev is given the most credit for the concept of a periodic table of the elements because:

Which of the following atoms has three electrons in p orbitals in its valence shell?

Which one of the following types of radiation has the shortest wavelength,the greatest energy,and the highest frequency?

For the set of elements Be,B,C,and N,which element has the smallest ionization energy? Explain any deviation from the expected pattern.

Which of the following concerning second ionization energies is true?

Ti has __________ in its d orbitals.

Write the electron configuration for the following: -I

Germanium has __________ in its 4p orbitals.

Choose the atom or ion using a periodic table. -Larger atomic or ionic radius,Mg or Mg²⁺

What is the wavelength of light that is emitted when an excited electron in the hydrogen atom falls from n = 5 to n = 1?

The four lines observed in the visible emission spectrum of hydrogen tell us that:

Which form of electromagnetic radiation has the longest wavelengths?

An atom of fluorine contains nine electrons.How many of these electrons are in s orbitals?

How many f orbitals have n = 6?

Given the following electronic configuration of neutral atoms,identify the element and state the number of unpaired electrons in its ground state: -[Kr]5s²4d¹⁰5p⁴

All matter exhibits either particulate or wave properties exclusively.

Which of the following statements is true?

Of the following elements,which has the lowest first ionization energy?