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WorksheetsUnderstanding Electron Configuration
Total questions: 68
Worksheet time: 34mins
Formulate the electron configurations of many elements.
Write the arrangement of electrons in the atomic orbitals for various elements.
List the atomic masses of different elements.
Describe the physical states of elements at room temperature.
Identify the color of each element in the periodic table.
The chemical behavior of elements is most closely related to which of the following?
Their electron configurations
Their atomic mass
Their physical state at room temperature
Their melting point
Electron configurations of elements are related to the periodic table because:
They determine the position of elements in the table.
They describe the color of each element.
They show the melting point of elements.
They indicate the atomic mass directly.
Fill in the blank: The electron configuration for chlorine (Cl), atomic number 17, is ________.
1s² 2s² 2p⁶ 3s² 3p⁵
1s² 2s² 2p⁶ 3s² 3p⁶
1s² 2s² 2p⁶ 3s² 3p⁴
1s² 2s² 2p⁶ 3s² 3p³
Which of the following lists contains all of the elements that end with a single s electron (1s¹, 2s¹, 3s¹, 4s¹, 5s¹, 6s¹, or 7s¹) in increasing atomic number order?
H, Li, Na, K, Rb, Cs, Fr
He, Ne, Ar, Kr, Xe, Rn, Og
Be, Mg, Ca, Sr, Ba, Ra
B, Al, Ga, In, Tl, Nh
Which column(s) on the periodic table contain all of the elements that end with a single s electron (1s¹, 2s¹, 3s¹, 4s¹, 5s¹, 6s¹, or 7s¹)?
Group 1 (alkali metals)
Group 2 (alkaline earth metals)
Group 17 (halogens)
Group 18 (noble gases)
Which of the following lists contains only the elements whose last electron enters an s orbital and ends with s², in increasing atomic number order?
Be, Mg, Ca, Sr, Ba, Ra
Li, Na, K, Rb, Cs, Fr
B, Al, Ga, In, Tl
C, Si, Ge, Sn, Pb
Find all of the elements that end with two s electrons (s²). Be sure that you have only the elements whose last electron was that second electron. What column on the periodic table are they located?
Column 2 (Group 2)
Column 1 (Group 1)
Column 17 (Group 17)
Column 18 (Group 18)
Which of the following groups contains only elements that end with two s electrons (s²), where the last electron added was the second s electron? Also, why does helium not fit in with the rest of the elements in this group?
Group 2 elements (alkaline earth metals); Helium is a noble gas and has a full shell with only two electrons, unlike the others.
Group 1 elements (alkali metals); Helium is a nonmetal.
Transition metals; Helium is a gas at room temperature.
Halogens; Helium is not reactive.
Which of the following lists contains the symbols of all elements that have two s electrons and six p electrons in their outside energy level (s², p⁶), in increasing atomic number order?
Ne, Ar, Kr, Xe, Rn
He, Ne, Ar, Kr, Xe
O, S, Se, Te, Po
F, Cl, Br, I, At
Find all of the elements that end with d electrons (d¹-¹⁰). What are the symbols of these elements, in increasing atomic number order?
Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, Hf, Ta, W, Re, Os, Ir, Pt, Au, Hg, Rf, Db, Sg, Bh, Hs, Mt, Ds, Rg, Cn
Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn
He, Ne, Ar, Kr, Xe, Rn, Og, H, Li, Be, B, C, N, O, F, Na, Mg, Al, Si, P, S, Cl, K, Ca, Ga, Ge, As, Se, Br, Kr
H, He, Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca, Rb, Sr, Cs, Ba, Fr, Ra, Sc, Y, La, Ac
Find all of the elements that end with d electrons (d¹-¹⁰). Look on your periodic table and find the elements on this list. Where are they located?
They are located in the d-block, which is the central block of the periodic table (groups 3-12).
They are located in the s-block, which is the leftmost block of the periodic table (groups 1-2).
They are located in the p-block, which is the rightmost block of the periodic table (groups 13-18).
They are located in the f-block, which is the bottom two rows of the periodic table.
Find all of the elements that end with f electrons (f¹-¹⁴). What are the symbols of these elements, in increasing atomic number order?
La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Ac, Th, Pa, U, Np, Pu, Am, Cm, Bk, Cf, Es, Fm, Md, No, Lr
Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn
H, He, Li, Be, B, C, N, O, F, Ne
Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca
Find all of the elements that end with f electrons (f¹-¹⁴). Look on your periodic table and find the elements on this list. Where are they located?
They are located in the f-block, which is the two rows at the bottom of the periodic table (lanthanides and actinides).
They are located in the s-block, which is the first two columns on the left of the periodic table.
They are located in the p-block, which is the rightmost six columns of the periodic table.
They are located in the d-block, which is the ten columns in the center of the periodic table.
Find all of the elements that have their outside electrons in the third energy level (3s, 3p, 3d, or 3f). What are the symbols of these elements, in increasing atomic number order?
Na, Mg, Al, Si, P, S, Cl, Ar, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Br, Kr
Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar
K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Br, Kr
H, He, Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar
Find all of the elements that have their outside electrons in the third energy level (3s, 3p, 3d, or 3f). Look on your periodic table and find the elements on this list. Where are they located?
They are located in period 3 and the 3d transition metals in period 4 of the periodic table.
They are located only in period 2 of the periodic table.
They are found exclusively in the noble gases group.
They are located in period 1 and the lanthanide series.
Which of the following lists contains the symbols of all elements that have their outside electrons in the fourth energy level (4s, 4p, 4d, or 4f), in increasing atomic number order?
K, Ca, Ga, Ge, As, Se, Br, Kr, Rb, Sr, Y, Zr, Nb, Mo, Tc, Ru, Rh, Pd, Ag, Cd, In, Sn, Sb, Te, I, Xe
Na, Mg, Al, Si, P, S, Cl, Ar
Li, Be, B, C, N, O, F, Ne
Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn
Which group of elements have their outside electrons in the fourth energy level (4s, 4p, 4d, or 4f)?
Elements in periods 4 and higher
Elements in period 2
Elements in group 1 only
Elements in period 1
A scrap of paper with the electron configuration of an element was picked up off the floor. It was incomplete, but the last thing listed was 6s² 6p⁴. What is the element’s complete electron configuration?
[Xe] 6s² 4f¹⁴ 5d¹⁰ 6p⁴
[Kr] 5s² 4d¹⁰ 5p⁶
[Xe] 6s² 6p⁶
[Ar] 4s² 3d¹⁰ 4p⁶
Which of the following best summarizes the connection between electron configurations and the periodic table?
The arrangement of elements in the periodic table is based on their electron configurations.
Electron configurations have no relation to the periodic table.
The periodic table is organized by atomic mass only, not electron configurations.
Electron configurations are only important for transition metals.
What is the full name of the element with the symbol 'Pd'?
Palladium
Platinum
Polonium
Protactinium
What is the full name of the element with the symbol 'Ag'?
Silver
Gold
Argon
Aluminum
What is the full name of the element with the symbol 'Cd'?
Cadmium
Calcium
Cobalt
Cesium
What is the full name of the element with the symbol 'La'?
Lanthanum
Lutetium
Lawrencium
Lead
What is the full name of the element with the symbol 'Ra'?
Radium
Rhodium
Ruthenium
Rubidium
What is the full name of the element with the symbol 'He'?
Helium
Hydrogen
Hassium
Holmium
What is the full name of the element with the symbol 'Ne'?
Neon
Nickel
Neptunium
Nobelium
What is the full name of the element with the symbol 'Ar'?
Argon
Argentum
Arsenic
Astatine
What is the full name of the element with the symbol 'Rb'?
Rubidium
Ruthenium
Radium
Rhenium
What is the full name of the element with the symbol 'Cs'?
Cesium
Calcium
Cobalt
Curium
What is the full name of the element with the symbol 'Fr'?
Francium
Fermium
Fluorine
Francine
What is the full name of the element with the symbol 'Be'?
Beryllium
Boron
Bismuth
Barium
What is the full name of the element with the symbol 'Sm'?
Samarium
Selenium
Scandium
Strontium
What is the full name of the element with the symbol 'Eu'?
Europium
Einsteinium
Erbium
Euphonium
What is the full name of the element with the symbol 'Gd'?
Gadolinium
Gallium
Gold
Germanium
What is the full name of the element with the symbol 'Tb'?
Terbium
Thulium
Tellurium
Titanium
What is the full name of the element with the symbol 'Ti'?
Titanium
Tantalum
Tellurium
Thallium
What is the full name of the element with the symbol 'V'?
Vanadium
Vandium
Valium
Vanadite
What is the full name of the element with the symbol 'Cr'?
Chromium
Cobalt
Cerium
Carbon
What is the full name of the element with the symbol 'Mn'?
Manganese
Magnesium
Mercury
Molybdenum
What is the full name of the element with the symbol 'Zn'?
Zinc
Zirconium
Zircon
Zirconate
What is the full name of the element with the symbol 'Y'?
Yttrium
Ytterbium
Yttrine
Yttrite
What is the full name of the element with the symbol 'Zr'?
Zirconium
Zinc
Zirconite
Zircaloy
What is the full name of the element with the symbol 'Nb'?
Niobium
Nobelium
Neptunium
Nihonium
What is the name of the element with the symbol Ce?
Cerium
Calcium
Cesium
Cobalt
What is the name of the element with the symbol Pr?
Praseodymium
Promethium
Platinum
Protactinium
What is the name of the element with the symbol Nd?
Neodymium
Nickel
Niobium
Nobelium
What is the name of the element with the symbol Pm?
Promethium
Polonium
Platinum
Palladium
What is the name of the element with the symbol Fe?
Iron
Gold
Silver
Copper
What is the name of the element with the symbol Co?
Cobalt
Copper
Carbon
Calcium
What is the name of the element with the symbol Ni?
Nickel
Neon
Nitrogen
Niobium
What is the name of the element with the symbol Cu?
Copper
Carbon
Calcium
Cobalt
What is the name of the element with the symbol H?
Hydrogen
Helium
Oxygen
Nitrogen
What is the name of the element with the symbol Li?
Lithium
Beryllium
Sodium
Potassium
What is the name of the element with the symbol Na?
Sodium
Nitrogen
Neon
Nickel
What is the name of the element with the symbol K?
Potassium
Krypton
Calcium
Sodium
What is the name of the element with the symbol Kr?
Krypton
Kradon
Kryptonide
Kroton
What is the name of the element with the symbol Xe?
Xenon
Xenium
Xeronium
Xenite
What is the name of the element with the symbol Rn?
Radon
Rhenium
Ruthenium
Rubidium
What is the name of the element with the symbol Sc?
Scandium
Selenium
Silicon
Sulfur
What is the name of the element with the symbol Mg?
Magnesium
Manganese
Mercury
Molybdenum
What is the name of the element with the symbol Ca?
Calcium
Carbon
Cadmium
Cesium
What is the name of the element with the symbol Sr?
Strontium
Selenium
Sulfur
Samarium
What is the name of the element with the symbol Ba?
Barium
Boron
Beryllium
Bismuth
What is the name of the element with the symbol Mo?
Molybdenum
Magnesium
Manganese
Mercury
What is the name of the element with the symbol Tc?
Technetium
Tellurium
Thulium
Tantalum
What is the name of the element with the symbol Ru?
Ruthenium
Rubidium
Rutherfordium
Radon
What is the name of the element with the symbol Rh?
Rhodium
Rhenium
Rubidium
Radon
