MCQ

CH3 - ATOMS AND ELEMENTS

Which element does not form a stable ion with the same electronic structure as argon?

2017 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

Which statements about isotopes of the same element are correct?1 They are atoms which have the same chemical properties because they have the same nu...

2016 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

Which row describes silicon(IV) oxide? [Table_1]

2017 Winter

2

MCQ

CH3 - ATOMS AND ELEMENTS

The table shows information about four different particles.[Table_1]What are the values of W, X, Y and Z?

2016 Winter

2

MCQ

CH3 - ATOMS AND ELEMENTS

Why do isotopes of the same element have the same chemical properties?

2017 Winter

2

MCQ

CH3 - ATOMS AND ELEMENTS

Which statements about isotopes of the same element are correct?1. They are atoms which have the same chemical properties because they have the same n...

2016 Summer

1

MCQ

CH3 - ATOMS AND ELEMENTS

The electronic structures of atoms Q and R are shown.Q and R form an ionic compound.What is the formula of the compound?

2017 Summer

2

MCQ

CH3 - ATOMS AND ELEMENTS

An atom has three electron shells. There are three electrons in the outer shell. How many protons and how many neutrons are in this atom? [Table_1]

2016 Winter

2

MCQ

CH3 - ATOMS AND ELEMENTS

Carbon has three naturally occurring isotopes, $^{12} ext{C}$, $^{13} ext{C}$ and $^{14} ext{C}$.Which statement explains why the isotopes have the sa...

2017 Winter

3

MCQ

CH3 - ATOMS AND ELEMENTS

Which dot-and-cross diagram shows the outer shell electron arrangement in a molecule of carbon dioxide?

2017 Winter

2

Theory

CH1 - STATES OF MATTER

The diagrams show the arrangement of particles in three different physical states of substance X.Which statement about the physical states of substanc...

2011 Summer

3

Theory

CH2 - SEPARATING SUBSTANCES

An aqueous solution is coloured. Which method of separation would show that the solution contains ions of different colours? A chromatography B crysta...

2011 Summer

1

Theory

CH2 - SEPARATING SUBSTANCES

The table gives the solubility of four substances in ethanol and in water.A mixture containing all four substances is added to ethanol, stirred and fi...

2011 Summer

1

Theory

CH4 - ATOMS COMBINING

Which two elements react together to form an ionic compound? [Table_1] A. W and X B. X and Y C. Y and Z D. Z and W

2011 Summer

1

Theory

CH3 - ATOMS AND ELEMENTS

The diagram shows part of the Periodic Table.Which element is correctly matched with its electronic structure?[Table_1: electronic structure]A: 2,8,1B...

2011 Summer

1

Theory

CH4 - ATOMS COMBINING

In the diagrams, circles of different sizes represent atoms of different elements.Which diagram represents hydrogen chloride gas?Options: A, B, C, D

2011 Summer

2

Theory

CH4 - ATOMS COMBINING

The nucleon number and proton number of the lithium atom are shown by the symbol $^7_3\text{Li}$.What is the correct symbol for the lithium ion in lit...

2011 Summer

1

Theory

CH5 - REACTING MASSES AND CHEMICAL EQUATIONS

What is the relative molecular mass ($M_r$) of HNO$_3$? A 5 B 31 C 32 D 63

2011 Summer

2

Theory

CH14 - MAKING USE OF METALS

Electricity from a power station passes through overhead cables to a substation and then to a school where it is used to electrolyse concentrated hydr...

2011 Summer

2

Theory

CH1 - STATES OF MATTER

Which statement about the electrolysis of molten lead(II) bromide is correct? A A colourless gas is seen at the cathode. B A grey metal is seen at...

2011 Summer

2