Which is false about orbitals?

there are 7 d orbitals per level

For which of the following does size decrease?

ions across a series with the same number of electrons

Which is true of atomic radii?

Smaller atomic size leads to a greater ionization energy

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Exam IV review 2023-2024: Periodic Table

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questions on electrons, periodic trends, and compounds #electrons #valenceelectron #ions #periodictrends

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Questions 18

Answers

1
Metals are:
brittle
malleable
ductile
poor conductors
2
Which is not a rule for electron configuration?
conservation of mass
Pauli exclusion principle
Aufbau principle
Hund's rule
3
At what atomic number would g orbitals theoretically start to appear?
135
121
119
131
4
Which element has the highest electronegativity?
cesium
chlorine
fluorine
oxygen
5
Which trend is correct across periods?
ionization energy decreases
Shielding increases
electronegativity is constant
atomic radius decreases
6
Which is false about ions?
Anions are formed by gaining electrons
Cations are positive, anions negative
They achieve the octet rule
Cations are larger than anions
7
Which is false about orbitals?
there are 3 p orbitals per level
s and p orbitals hold valence electrons
can hold 2 electrons
there are 7 d orbitals per level
8
Which scientist developed a periodic table based on atomic mass to find undiscovered elements?
Mendeleev
Rutherford
Mosely
Chadwick
9
Which group is the least reactive?
halogens
alkali metals
noble gases
alkaline earth metals
10
Which correctly matches the element with their valence electrons?
potassium:5
oxygen:7
sodium:2
sulfur: 6
11
Elements in group 2A are the:
halogens
noble gases
alkaline earth metals
alkali metals
12
Which trend is correct down groups?
electronegativity increases
shielding decreases
Ionization energy decreases
Atomic radius is constant
13
Which state of matter are ionization energy and electron affinity measured in?
solid
liquid
gas
14
Which correctly matches the element with their expected ionic charge?
sulfur: +6
bromine: +1
radium: +2
aluminum: -5
15
For which of the following does size decrease?
ions across a whole period
atoms down a group
ions across a series with the same number of electrons
ions down a group
16
Which of the following is a transition metal?
lead
nickel
sodium
aluminum
17
Which is true of atomic radii?
Greater nuclear charge leads to a larger atomic radius
More shielding decreases the atomic radius
Atomic radius increases from bottom left to top right
Smaller atomic size leads to a greater ionization energy
18
Which is false for electron configuration?
aluminum is in the p block
Iron is in the 3d section
uranium is in the 7f section
Most noble gases end in p6

Exam IV review 2023-2024: Periodic Table Flashcards | StudBud