elements that are characterized by the filling of p orbitals are classified as

# elements that are characterized by the filling of p orbitals are classified as

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periodhorizontal row in the periodic table
groupvertical row in the periodic table
periodic lawa repetition of properties occurs when elements are arranged in order of increasing atomic number
metaltype of element that is a good conductor of heat and electric current
transition metaltype of element characterized by the presence of electrons in the d orbital
atomic radiusone-half the distance between the nuclei of two atoms are joined
cationtype of ion formed by group 2A elements
electronssubatomic particles that are transferred to form positive and negative ions
electronegativityability of an atom to attract electrons when the atom is in a compound
ionization energyenergy required to remove an electron from an atom
What is another name for the representative elements?Group A elements
What is another name for the transition metals?Group B elements
Which of the following elements is in the same period as phosphorus?Magnesium
Each period in the periodic corresponds toa principal energy level
The modern periodic table is arranged in order of increasingAtomic number
Who arranged the elements according to atomic mass and used the arrangement to predict the properties of missing elements?Dmitri Mendeleev
Which of the following categories includes the majority of the elements?Metals
Of the elements Pt, V, Li, and Kr, which is a nonmetal?Kr
To what category of elements does an element belong if it is a poor conductor of electricity?Nonmentals
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
The atomic number of an element is the total number of which particles in the nucleus?Protons
What element has the electron configuration 1s^2 2p^6 3s^2 3p^2?Silicon
Which of the following is true about the electron configurations of the noble gases?The highest occupied s and p sublevels are partially filled
Elements that are characterized by the filling of p orbitals are classified asGroups 3A through 8A
Which of the following electron configurations is most likely to result in an element that is relatively inactive?A filled highest occupied principal energy level
Which subatomic particle plays the greatest part in determining the properties of an element?electron
Which of the following elements is a transition metal?copper
Which of the following groupings contains only representative elements?Al, Mg, Li
Which of the following is true about the electron configurations of the representative elements?the highest occupied s and p levels are partially filled
What are the Group 1A through Group 7A examples of?representative elements
Of the elements Fe, Hg, U, and Te, which is a representative element?Te
How does atomic radius change from top to bottom in a group in a periodic table?It tends to increase
How does atomic radius change from left to right across a period in the periodic table?It tends to decrease
What causes the shielding effect to remain constant across a period?electrons are added to the same principal energy level
Atomic size generallydecreases as you move from left to right across a period
What element in the second period has the largest atomic radius?neon
Which of the following factors contributes to the increase in atomic size within a group in the periodic table as the atomic number increases?more shielding of the electrons by the highest occupied energy level
Which of the following elements has the smallest atomic radius? Sulfur, Chlorine, Selenium, BromineChlorine
What is the charge of a cation?a positive charge
Which of the following statements is true about ions?cations form when an atom loses electrons
The metals in Groups 1A, 2A, and 3Alose ions when they form ions
Which of the following is not true about ions?When a cation forms, more electrons are transferred to it
Why is the second ionization energy greater than the first ionization energy?It is more difficult to remove a second electron from an atom
In which of the following sets are the charges given correctly for all ions?K^+, Sr^2+, O^2-
In which of the following groups of ions are the charges shown correctly?Ca^2+, Al^3+, Br^-
What is the element with the lowest electronegativity value? cesium, helium, calcium, or fluorinecesium
What is the element with the highest electronegativity value? cesium, helium, calcium, or fluorinefluorine
Which of the following elements has the smallest ionic radius? Li, K, O, SLi
What is the energy required to remove an electron from an atom in the gaseous state called?ionization energy
For Group 2A metals, which electron is the most difficult to remove?the third
Which of the following factors contributes to the decrease in ionization energy within a group in the periodic table as the atomic number increases?increase in atomic size
Which of the following elements has the smallest first ionization energy? sodium, calcium, potassium, or magnesiumpotassium
Which of the following elements has the lowest electronegativity? lithium, carbon, bromine, fluorinelithium
What is true about electronegativity?It generally increases from left to right across a period and decreases from top to bottom within a group
Compared with the electronegativities of the elements on the left side of a period, the electronegativities of the elements on the right side of the same period tend to behigher
Which of the following decreases with the increasing atomic number in Group 2A?ionization energy
What correctly compares the relative size of an ion to its neutral atom?the radius of an anion is greater than the radius of its neutral atom
Which factor contributes to the increase in ionization energy from left to right across a period?an increase in the number of protons
As you move from left to right across the second period of a periodic table ionization energyincreases
Of the following elements, which one has the smallest first ionization energy? boron, carbon, aluminum, or siliconaluminum
elements that
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