Chemistry Form 4 Chapter 4

Front

What is the electron arrangement of an atom in Group 14 and Period 3 of the Periodic Table?

Back

2.8.4

Front

What does an electron arrangement of 2.8.8.1 indicate about an element's reactivity compared to an element with 4 neutrons and a relative atomic mass of 7?

Back

Element W's reaction with water is less vigorous than that of element T.

Front

How do you determine the element with the same chemical properties as an atom with a nucleon number of 23 and 12 neutrons?

Back

Element Y has the same chemical properties as Potassium.

Front

What is the relationship between atomic size and reactivity in elements G, J, and M?

Back

Element G is more reactive than element M.

Front

What is the significance of the nucleon number in identifying elements?

Back

The nucleon number helps determine the element's identity and stability.

Front

Define the term 'relative atomic mass'.

Back

Relative atomic mass is the weighted average mass of an element's isotopes compared to 1/12th of the mass of carbon-12.

Front

What is the role of neutrons in an atom?

Back

Neutrons contribute to the atomic mass and stability of the nucleus but do not affect the charge.

Front

Explain the concept of electronegativity. How does it relate to reactivity?

Back

Electronegativity is the tendency of an atom to attract electrons. Higher electronegativity often correlates with higher reactivity.

Front

What is the difference between metals and non-metals in terms of reactivity?

Back

Metals tend to lose electrons and are generally more reactive than non-metals, which tend to gain electrons.

Front

How does the position of an element in the Periodic Table affect its properties?

Back

Elements in the same group have similar properties due to their similar electron arrangements.