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WorksheetsMatter: Atom and Molecules
Total questions: 18
Worksheet time: 22mins
What is the definition of MATTER?
State the Particle Theory of Matter.
Particles can be made from these 3
(a)
What is the definition of atom?
The smallest element and inseparable
Particle of an element that are made up of two or more atoms
Particles that are charged due to loss or gain of electrons
Give the definition of molecule
The smallest element and inseparable
Particle of an element that are made up of two or more atoms
Particles that are charged due to loss or gain of electrons
Define ion
The smallest element and inseparable
Particle of an element that are made up two or more atoms
Particles that are charged due to loss or gain of electrons
Which one is the example of atom?
CO2
Mg
Na+
OH-
Which of the following is the example of molecule?
Na
C
H2O
Cl-
Name the THREE major parts of an atom
What is the definition of protons?
Uncharged particles found in the atomic nucleus
Negatively charged particles that surround the atom's nucleus
Positively charged particles found in the atomic nucleus
Give the definition of neutrons.
Positively charged particles found in the atomic nucleus
Uncharged particles found in the atomic nucleus
Negatively charged particles that surround the atom's nucleus
What is the definition of electrons?
Uncharged particles found in the atomic nucleus
Positively charged particles found in the atomic nucleus
Negatively charged particles that surround the atom's nucleus
Based on the diagram, which one is denoted as proton number?
A
X
Z
What is nucleon number?
How many electrons in this element?
23
11
34
State the charge of this ion.
2+
2-
20
40
Which of the following is the definition of isotope?
Atoms of the same element with different numbers of protons in their nuclei.
Atoms of different elements with the same number of protons in their nuclei.
Atoms of the same element with different numbers of neutrons in their nuclei.
Atoms of different elements with the same atomic number but different mass numbers.
Write the relative molecular mass (R.M.M) of propanol, C3H7OH
