Arrangement of elements — Paper 2 · IGCSE Chemistry (9-1) 0971

21 Which element is in the same period of the Periodic Table as silicon? A germanium B scandium C sodium D strontium

1 marks

Answer: C

This question in 0971/21 May/June 2018

18 The positions of elements W, X, Y and Z in the Periodic Table are shown. W Y X Z Which elements form basic oxides? A W, X and Y B W and X only C Y only D Z only

1 marks

Answer: A

This question in 0971/21 May/June 2019

26 Sodium nitrate is a white crystalline solid that decomposes on heating. sodium nitrate heat Which row describes the decomposition products formed when sodium nitrate is heated strongly? solid products gaseous products A sodium nitrite NO2 and O2 B sodium nitrite O2 only C sodium oxide NO2 and O2 D sodium oxide O2 only

1 marks

Answer: B

This question in 0971/21 May/June 2020

25 Which row about elements in the Periodic Table is correct? statement 1 statement 2 A two elements in the same group metals are on the have similar chemical properties left of the table B two elements in the same group metals are on the have similar chemical properties right of the table C two elements in the same period metals are on the have similar chemical properties left of the table D two elements in the same period metals are on the have similar chemical properties right of the table

1 marks

Answer: A

This question in 0971/22 Oct/Nov 2020

8 Two elements, P and Q, are in the same period of the Periodic Table. P and Q react together to form an ionic compound. Part of the lattice of this compound is shown. P+ Q– Q– P+ Q– P+ P+ Q– Which statement is correct? A An ion of P has more electrons than an ion of Q. B Element P is non-metallic. C P is to the left of Q in the Periodic Table. D The formula of the compound is P4Q4.

1 marks

Answer: C

This question in 0971/21 May/June 2021

24 Element R forms a covalent compound R2Si with silicon. Which row describes R? metallic or group number in non-metallic character the Periodic Table A metallic II B metallic VI C non-metallic II D non-metallic VI

1 marks

Answer: D

This question in 0971/21 May/June 2021

22 Which statement about the trends shown by the elements of Period 3 in the Periodic Table is not correct? A The elements become less metallic across the period. B The group number increases across the period. C The number of electron shells increases across the period. D The number of outer electrons increases across the period.

1 marks

Answer: C

This question in 0971/22 May/June 2021

21 A period of the Periodic Table is shown. group I II III IV V VI VII VIII element R S T V W X Y Z The letters are not their chemical symbols. Which statement is correct? A Element R does not conduct electricity. B Elements R and Y react together to form an ionic compound. C Element Z exists as a diatomic molecule. D Element Z reacts with element T.

1 marks

Answer: B

This question in 0971/22 Oct/Nov 2021

20 The electronic structure of element Z is 2,8,1. Which statements about Z are correct? 1 It is a metal. 2 It has two outer-shell electrons. 3 It is in Period 3. A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 only

1 marks

Answer: C

This question in 0971/21 May/June 2022

21 Elements in Group IV of the Periodic Table are shown. carbon silicon germanium tin lead What does not occur in Group IV as it is descended? A The proton number of the elements increases. B The elements become more metallic. C The elements have more electrons in their outer shell. D The elements have more electron shells.

1 marks

Answer: C

This question in 0971/21 May/June 2022

21 Elements in Group IV of the Periodic Table are shown. carbon silicon germanium tin lead What does not occur in Group IV as it is descended? A The proton number of the elements increases. B The elements become more metallic. C The elements have more electrons in their outer shell. D The elements have more electron shells.

1 marks

Answer: C

This question in 0971/22 May/June 2022

21 Strontium displaces magnesium from molten magnesium chloride. Bromine displaces iodine from aqueous potassium iodide. Which row describes the change in reactivity down both Group II and Group VII of the Periodic Table? reactivity down the group Group II Group VII A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0971/22 Oct/Nov 2022

22 Elements J and K are in the same period in the Periodic Table. J reacts with acids to produce a salt and hydrogen. K reacts with sodium to form an ionic compound. Which statement about J and K is correct? A An atom of J has more electrons than an atom of K. B J and K are both metals. C J and K are both non-metals. D J is to the left of K in the Periodic Table.

1 marks

Answer: D

This question in 0971/22 Oct/Nov 2022

18 Which statements about the trends across a period of the Periodic Table are correct? 1 Aluminium is more metallic than sodium. 2 Beryllium is more metallic than carbon. 3 Boron is more metallic than lithium. 4 Magnesium is more metallic than silicon. A 1 and 2 B 1 and 3 C 2 and 4 D 3 and 4

1 marks

Answer: C

This question in 0971/21 May/June 2023

19 Q and R are elements in the same period of the Periodic Table. Q has 7 electrons in its outer shell and R has 2 electrons in its outer shell. Which statement about Q and R is correct? A Q is a metal and R is a non-metal. B Q and R have different numbers of electron shells. C R is found to the right of Q in the Periodic Table. D The proton number of R is less than the proton number of Q.

1 marks

Answer: D

This question in 0971/22 May/June 2023

5 The electronic configurations of two elements are given. element L: 2,8,8,1 element M: 2,8,4 Which row identifies the group number and the period number for element L and element M? element L element M group number period number group number period number A I 4 IV 3 B I 4 III 4 C IV 1 III 4 D IV 1 IV 3

1 marks

Answer: A

This question in 0971/21 May/June 2024

27 Which statement about elements in Period 3 of the Periodic Table is correct? A Aluminium is a non-metal in Group III. B Argon is in Group VIII and has eight electrons in its outer electron shell. C Magnesium is in Group II and has three electrons in its outer electron shell. D Sulfur is a metal in Group VI.

1 marks

Answer: B

This question in 0971/21 May/June 2024

2 Which statements about the position of the elements in the Periodic Table are correct? 1 Elements in the same group have similar chemical properties. 2 Elements in the same period have similar chemical properties. 3 Elements in the same group have the same number of electron shells. 4 Elements in the same group have the same number of outer shell electrons. A 1 and 3 B 1 and 4 C 2 and 3 D 2 and 4

1 marks

Answer: B

This question in 0971/22 May/June 2024