Free Periodic Properties and Trends MCQs with Answers
606 Periodic Properties and Trends MCQs from Chemistry, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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606 questions · page 9 of 31
- A. Al
- B. S
- C. Si
- D. P
Explanation: Phosphorus (P) has the highest ionization energy among the options given because it is located in group 15 of period 3, where ionization…
Correct answer: P- A. Li < Be < Na < Mg
- B. Be < Li < Na < Mg
- C. Mg < Na < Li < Br
- D. Na < Li < Mg < Be
Explanation: Ionization energy generally increases from left to right across a period and decreases from top to bottom within a group.
Correct answer: Na < Li < Mg < Be- A. 2
- B. 3
- C. 4
- D. 8
Explanation: The period 7 is incomplete so far. It contains only two normal elements Fr87 and Ra88 , ten transition elements and fourteen inner…
Correct answer: 2- A. s
- B. p
- C. d
- D. f
Explanation: Elements in the periodic table can also be classified into four blocks.This classification is based upon the valence orbital of the…
Correct answer: d- A. Shell
- B. Sub-shell
- C. Orbital
- D. All
Explanation: The division of blocks in periodic table are based on subshell it means the valence shell electron are in that subshell Subshell are s,p,d,f
Correct answer: Sub-shell- A. Mg > Sr
- B. Ba > Mg
- C. Lu > Ce
- D. Cl > I
Explanation: Ba and magnsium are in same group . Ba comes after Mg it means it has more shell so it has large atomic sizeAtomic Radius:Atoms are so…
Correct answer: Ba > Mg- A. Atomic mass
- B. Atomic no.
- C. Mass no.
- D. All
Explanation: The atomic number has been established as the fundamental characteristic of elements based on the work on x-ray spectra of elements.
Correct answer: Atomic no.- A. CsH
- B. LiH
- C. HCl
- D. NaH
Explanation: The binary compounds of hydrogen with other elements are called hydrides.
Correct answer: HCl- A. B
- B. C
- C. O
- D. N
Explanation: Generally, smaller the atom, with greater nuclear charge, more strongly the electrons are bound to the nucleus, and hence higher the…
Correct answer: N- A. Na+is smaller than Na
- B. Na+is larger than Na
- C. Cl- is smaller than Cl
- D. Cl- ion and Cl are equal
Explanation: When a neutral atom loses one or more electrons, it becomes a positive ion.
Correct answer: Na+is smaller than Na171. The element with atomic number 9 is closest in chemical properties with element of atomic-number:
- A. 27
- B. 11
- C. 17
- D. 8
Explanation: As they belong to the same group, group 7A, they have the same chemical properties.
Correct answer: 17- A. s, p
- B. s, p, d
- C. s, p, f
- D. s, p, d, f
Explanation: The period 6 is also a long period, which contains thirty-two elements.
Correct answer: s, p, d, f- A. Lother Mayer
- B. Mendeleev
- C. Ramsay
- D. Mosley
Explanation: Group VIIIA elements, which are also called zero group elements, usually show zero oxidation state because there is no vacancy in their…
Correct answer: Mendeleev- A. Representative elements
- B. Transition elements
- C. Non-typical transition elements
- D. Coinage metal group
Explanation: 2B group are called non typical tramsition elements cause they have some property of transition and sone of p block
Correct answer: Non-typical transition elements- A. Be
- B. Mg
- C. Cd
- D. Cr
Explanation: As we move along the period the melting point increases and along the group it decreases so which is why Mg has lowest melting point as it…
Correct answer: Mg- A. N, O, F
- B. Si, P, S
- C. F, O, N
- D. S, Si, P
Explanation: Flourine has the highest electronegativity that is 4 because of small size they we have oxygen and then nitrogen has lowest…
Correct answer: F, O, N- A. Transition metals
- B. Halogen
- C. Alkali metals
- D. Noble gases
Explanation: Alkali metals are group 1A elements so they have one eletron in valence shell which they easily lose and form positive ion so hydrogen…
Correct answer: Alkali metals- A. NaCl
- B. AlCl3
- C. CCl4
- D. H2O
Explanation: AlCl3 is partially ionic so it act as bridge structure
Correct answer: AlCl3- A. P
- B. S
- C. Mn
- D. Cr
Explanation: Transition elements, which are shown in B subgroups of the periodic table, also show the oxidation states equal to their group number as…
Correct answer: Mn- A. IA
- B. IIA
- C. IIIA
- D. IVA
Explanation: The melting and boiling points of IA and IIA group elements decrease from top to bottom due to the increase in their atomic sizes.
Correct answer: IVA