Atomic Structure - Quiz Honors

Ace your atomic structure quiz! Practice protons, neutrons, electrons, and more.

Match the following the smallest particle of an element that retains the properties of that element atom a positively charged subatomic particle proton a negatively charged subatomic particle electron a subatomic particle with no charge neutron the central part of an atom, containing protons and neutrons nucleus Match the following the total number of protons and neutrons in the nucleus of an atom mass number the number of protons in the nucleus of an element atomic number region of high probability of finding an electron atomic orbital tendency of electrons to enter orbitals of lowest energy first Aufbaus Principle arrangement of electrons around atomic nucleus electron configuration each orbital has at most two electrons Pauli's exclusion principle Match the following horizontal row in the periodic table period vertical column in the periodic table group type of element that is a good conductor of heat and electric current metal type of element characterized by the presence of electrons in the d orbital transition metal Which of the following is true about subatomic particles? Electrons are negatively charged and are the heaviest subatomic particle. Protons are positively charged and the lightest subatomic particle. Neutrons have no charge and are the lightest subatomic particle. The mass of a neutron nearly equals the mass of a proton. An element has an atomic number of 76. The number of protons and electrons in a neutral atom of the element are _. 152 protons and 76 electrons 76 protons and 0 electrons 38 protons and 38 electrons 76 protons and 76 electrons In which of the following sets is the symbol of the element, the number of protons, and the number of electrons given correctly? In, 49 protons, 49 electrons Cs, 55 protons, 132.9 electrons Zn, 30 protons, 60 electrons F, 19 protons, 19 electrons Using the periodic table, determine the number of neutrons in O16. 4 8 16 24 How many protons, electrons, and neutrons does an atom with atomic number 50 and mass number 125 contain? 50 protons, 50 electrons, 75 neutrons 120 neutrons, 50 protons, 75 electrons 75 electrons, 50 protons, 50 neutrons 70 neutrons, 75 protons, 50 electrons How is the number of neutrons in the nucleus of an atom calculated? Add the number of electrons and protons together. Subtract the number of electrons from the number of protons. Subtract the number of protons from the mass number. Add the mass number to the number of electrons. In which of the following is the number of neutrons correctly represented? 19F9 has 0 neutrons. 75As33 has 108 neutrons. 24Mg12 has 24 neutrons. 238U92 has 146 neutrons. In Bohr's model of the atom, where are the electrons and protons located? The electrons move around the protons, which are at the center of the atom. The electrons and protons move throughout the atom. The electrons occupy fixed positions around the protons, which are at the center of the atom. The electrons and protons are located throughout the atom, but they are not free to move. How does the energy of an electron change when the electron moves closer to the nucleus? It decreases. It stays the same. It increases. It doubles. What is the shape of the 3p atomic orbital? sphere bar dumbbell two perpendicular dumbbells How many energy sublevels are in the second principal energy level? 1 2 3 4 What is the maximum number of f orbitals in any single energy level in an atom? 1 3 5 7 What is the maximum number of d orbitals in a principal energy level? 1 3 5 7 If the spin of one electron in an orbital is clockwise, what is the spin of the other electron in that orbital? zero counterclockwise clockwise both clockwise and counterclockwise What types of atomic orbitals are in the third principal energy level? s and p only s, p, and d only p and d only s, p, d, and f What is the next atomic orbital in the series 1s, 2s, 2p, 3s, 3p? 2d 3d 3f 4s According to the aufbau principle, _. an orbital may be occupied by only two electrons electrons in the same orbital must have opposite spins electrons enter orbitals of highest energy first electrons enter orbitals of lowest energy first What is the electron configuration of potassium? 1s22s22p23s23p24s1 1s22s23s23p63d1 1s22s22p103s23p3 1s22s22p63s23p64s1 If three electrons are available to fill three empty 2p atomic orbitals, how will the electrons be distributed in the three orbitals? one electron in each orbital two electrons in one orbital, one in another, none in the third three in one orbital, none in the other two Three electrons cannot fill three empty 2p atomic orbitals. Which of the following elements is in the same period as phosphorus? carbon magnesium nitrogen oxygen Each period in the periodic table corresponds to _ a principal energy level an orbital an energy sublevel a suborbital The modern periodic table is arranged in order of increasing atomic _ mass number charge radius Of the elements Pt, V, Li, and Kr, which is a nonmetal? Pt V Li Kr To what category of elements does an element belong if it is a bad conductor of heat and electricity? transition metals nonmetals metalloids metals What element has the electron configuration 1s22s22p63s23p2? nitrogen selenium silicon silver Which of the following is true about the electron configurations of the noble gases? The highest occupied s and p sublevels are completely filled. The highest occupied s and p sublevels are partially filled. The electrons with the highest energy are in a d sublevel. The electrons with the highest energy are in an f sublevel.