An element Q forms a compound QCI5. In which group of the periodic table is Q?

Assessment: WAEC SSCE - Chemistry - 2009 (Objective) Subject: Chemistry

Question 1 Report

An element Q forms a compound QCI5. In which group of the periodic table is Q?
Answer Details
The Roman numeral in the compound QCI5 indicates the oxidation state of element Q in the compound, which is 5. From this information, we can determine the group number of element Q in the periodic table. Group number of an element is equal to its highest oxidation state. Since the oxidation state of element Q in the compound is 5, it belongs to group V of the periodic table. Therefore, the correct answer is V.
Read lesson note on Periodic Chemistry (Nigeria Only) (WAEC)
View Answer

Related Questions

1

Consider the reaction represented by the equation: 23892U + 10 → 139 56Ba + 94 36Kr + 31 0n. The reaction represents a
2

How many protons does 4020Ca contain?
3

The following properties are characteristics of transition elements except
4

Which of the following ions is isoelectronic with neon? [3Li, 3F, 10Ne, 17CI,19K]
5

Which of the following scientists discovered the neutron?
6

How many orbitals are associated with the p-sub energy level?
7

Which of the following elements has the electronic configuration:1s22s22p63s23p1? [11Na, 13A1, 14N,16S]
8

If 100 atoms of element X contains 70 atoms of 9X and 30 atoms of 11X, calculate the relative atomic mass of X

Download The App On Google Playstore

Everything you need to excel in your exams

Green Bridge CBT Mobile App
Personalized AI Learning Chat Assistant
200,000+ Exam Questions Across IGCSE, JAMB, WAEC & NECO
Over 3,900 Lesson Notes
Offline Support - Learn Anytime, Anywhere
Green Bridge Timetable
Literature Summaries & Potential Questions
Track Your Performance & Progress
In-depth Explanations for Comprehensive Learning