Atoms and Molecules Worksheet Y9 Module 2.1

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What is the chemical structure of diamond?

C4

C6

C2

C (correct)

What is the location of electrons in an atom?

In the protons

In shells around the nucleus (correct)

Outside the atom

In the nucleus

What is the charge of the nucleus of an atom?

Positive (correct)

It depends on the element

No charge

Negative

What is the classification of oxygen gas?

Element (A) Signup and view all the answers

What is the chemical structure of table salt (sodium chloride)?

NaCl (C) Signup and view all the answers

What is the number of protons in the atom of Calcium (Ca)?

20 (B) Signup and view all the answers

Which element is a non-metal?

Iodine (D) Signup and view all the answers

What is the term for an atom that has gained an electron?

Anion (C) Signup and view all the answers

What is the atomic symbol for the element Manganese?

Mn (C) Signup and view all the answers

Which atoms typically lose electrons?

Metals (C) Signup and view all the answers

What is the electron configuration of a fluoride ion?

2, 8 (C) Signup and view all the answers

What is the purpose of using Roman numerals when naming a cation?

To indicate the charge of the ion (A) Signup and view all the answers

What is the chemical symbol for the manganese ion with a charge of 4+?

Mn4+ (C) Signup and view all the answers

What is the name of the anion with the chemical symbol S2-?

Sulfide (B) Signup and view all the answers

What is the electron configuration of a fluorine atom?

2, 7 (B) Signup and view all the answers

Which of the following is a characteristic of an ion?

It has gained or lost electrons (B) Signup and view all the answers

What type of ion is formed when a metal atom loses electrons?

Cation (D) Signup and view all the answers

Which elements are unlikely to form ions?

Noble gases (C) Signup and view all the answers

What is the electron configuration of a sodium ion?

2, 8 (C) Signup and view all the answers

What is the process by which anions are formed?

Electron gain by non-metal atoms (C) Signup and view all the answers

Match the following atoms with their resulting ions when they gain or lose electrons:

A chlorine atom that has gained 1 electron = Cl- anion A sodium atom that has lost 1 electron = Na+ cation A nitrogen atom that has gained 3 electrons = N3- anion An iron atom that has lost 2 electrons = Fe2+ cation Signup and view all the answers

Match the following descriptions with the type of ion:

An ion that has lost electrons to become overall positively charged = Cation An ion that has gained electrons to become overall negatively charged = Anion An ion that has the same number of protons as electrons = Atom An ion that never forms at all = Noble gases Signup and view all the answers

Match the following elements with the type of ions they can form:

Metals = Cations Non-metals = Anions Noble gases = Neither cations nor anions Hydrogen = Cations Signup and view all the answers

Match the following electron configurations with the corresponding atom or ion:

2, 8, 1 = A sodium atom 2, 8 = A sodium ion 1, 2 = A hydrogen atom 1, 2, 3 = A nitrogen atom Signup and view all the answers

Match the following processes with the type of ion formed:

Metal atom loses electrons = Cation Non-metal atom gains electrons = Anion Metal atom gains electrons = Anion Non-metal atom loses electrons = Cation Signup and view all the answers

Match the elements with their respective atomic numbers:

Carbon = 6 Calcium = 20 Chlorine = 17 Copper = 29 Signup and view all the answers

Match the elements with their classification as metal or non-metal:

Fluorine = Non-metal Titanium = Metal Iodine = Non-metal Zinc = Metal Signup and view all the answers

Match the ion formation processes with their descriptions:

Cation = An atom that has lost an electron Anion = An atom that has gained an electron Metals = Atoms that lose electrons Non-metals = Atoms that gain electrons Signup and view all the answers

Match the elements with their atomic symbols:

Carbon = C Manganese = Mn Xenon = Xe Uranium = U Signup and view all the answers

Match the elements with their special properties:

Hydrogen = Can both lose or gain an electron Metals = Typically lose electrons Non-metals = Typically gain electrons Noble Gases = Unreactive Signup and view all the answers

Match the following cations with their chemical symbols:

Sodium ion = Na+ Lithium ion = Li+ Magnesium ion = Mg2+ Copper II ion = Cu2+ Signup and view all the answers

Match the following anions with their chemical symbols:

Hydride = H- Sulfide = S2- Phosphide = P3- Iodide = I- Signup and view all the answers

Match the following electron configurations with their corresponding ions:

2, 7 = A fluorine atom 2, 8 = A fluoride ion 1, 1 = A hydrogen ion Not specified = Not specified Signup and view all the answers

Match the following types of ions with their characteristics:

Metal ions = Tend to lose electrons Non-metal ions = Tend to gain electrons Noble gas ions = Do not exist Polyatomic ions = Have multiple atoms Signup and view all the answers

Match the following ions with their names:

Fe3+ = Iron (III) ion Al3+ = Aluminium ion Ba2+ = Barium ion Mn4+ = Manganese ion Signup and view all the answers