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In this lesson, we will learn how to use the periodic table to deduce the electron configurations of main group (s- and p-block) elements.
Q1:
Which of the following is not a possible electronic configuration of the P atom?
Q2:
Which of the following has exactly two unpaired electrons?
Q3:
What is the electronic configuration of the N a + ion?
Q4:
What is the name and chemical symbol for the most stable ion of aluminium?
Q5:
What is the name and chemical symbol for the most stable ion of nitrogen?
Q6:
Which of the following orbital diagrams describes the electron configuration of the valence shell in the ground-state A l 2 + ion?
Q7:
Which of the following has the electronic configuration 1s2 2s2 2p6 3s2 3p5?
Q8:
What is the electronic configuration of the T e atom?
Q9:
Q10:
Which atom or ion is isoelectronic with P 2 + ?
Q11:
What is the name and chemical symbol for the most stable ion of magnesium?
Q12:
Which atom would be expected to have a half-filled 4s subshell?
Q13:
What is the electronic configuration of the S i atom?
Q14:
Which of the following orbital diagrams describes the electron configuration of the valence shell in the ground-state N a atom?
Q15:
An ionic compound entirely consists of aluminium and oxygen. What is the likely empirical formula of this compound?
Q16:
Which atom has the electron configuration 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d2 5s2?
Q17:
Which atom or ion is isoelectronic with B r + ?
Q18:
What is the name and chemical symbol for the most stable ion of carbon?
Q19:
Which of the following orbital diagrams describes the electron configuration of the valence shell in the ground-state phosphide ion?
Q20:
An ion has the electron configuration 1s2 2s2 2p6 3s2 3p6. Which of the following pieces of information would not allow this ion to be precisely identified?
Q21:
What is the electronic configuration of the N atom?
Q22:
What is the electronic configuration of the S n 2 + ion?
Q23:
Which atom has the electron configuration [ K r ] 4d10 5s2 5p6 in its ground state?
Q24:
Which atom would be expected to have a half-filled 5p subshell?
Q25:
An ionic compound entirely consists of sodium and sulfur. What is the likely empirical formula of this compound?
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