Periodic Table
20 past-paper questions on Periodic Table · examined 2020–2025.
20257 questions
Which element reacts with oxygen to produce an amphoteric oxide?
Element X is in Period 2 of the Periodic Table. X reacts with magnesium to form an ionic compound with the formula MgX2. What is X?
Rubidium is an element in Group I of the Periodic Table. Which statement about rubidium is correct?
Which statement is correct?
Elements P, Q, R and S are in either Group I or Group VII of the Periodic Table. Which pair of elements gives the most vigorous reaction?
Which statement about elements in the Periodic Table is correct?
Elements P, Q, R and S are in either Group I or Group VII of the Periodic Table. Which pair of elements gives the most vigorous reaction?
20241 question
The total number of electrons in one atom of element Q is 17 and in one atom of element R is 19. Which statement about elements Q and R is correct?
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