Chemistry
Grade-9
Easy
Question
The one or two letter representation of an element is called as:
- Atomic number
- Element symbol
- Element name
- Atomic mass
Hint:
A shortcut representation of anything is the symbol.
The correct answer is: Element symbol
- The atomic number of a chemical element is the number of protons in the nucleus of an atom of the element.
- The one or two-letter representation of an element is called an element symbol.
- The element name is the name of each element in the periodic table.
- Atomic mass is the sum of the number of protons and neutrons in an atom.
Related Questions to study
Chemistry
The chemical symbol of iron is:
The chemical symbol of iron is:
ChemistryGrade-9
Chemistry
The total number of known elements to us are:
The total number of known elements to us are:
ChemistryGrade-9
Chemistry
A pure substance that cannot be broken down into a simpler substance by a chemical reaction.
A pure substance that cannot be broken down into a simpler substance by a chemical reaction.
ChemistryGrade-9
Chemistry
The smallest particle of any particular type of matter is known by which of the following terms?
The smallest particle of any particular type of matter is known by which of the following terms?
ChemistryGrade-9
Chemistry
The name of the planet which is not taken for naming an element is:
The name of the planet which is not taken for naming an element is:
ChemistryGrade-9
Chemistry
Identify the scientist whose name is not given for any element?
Identify the scientist whose name is not given for any element?
ChemistryGrade-9
Chemistry
Which of the following is an element?
Which of the following is an element?
ChemistryGrade-9
Chemistry
Which of the compounds shows the highest lattice energy?
Which of the compounds shows the highest lattice energy?
ChemistryGrade-9
Chemistry
They are non-conductors of electricity in solid, molten or aqueous state.
They are non-conductors of electricity in solid, molten or aqueous state.
ChemistryGrade-9
Chemistry
Which of the following is NOT TRUE about covalent compounds?
Which of the following is NOT TRUE about covalent compounds?
ChemistryGrade-9
Chemistry
They are conductors of electricity in solid, molten or aqueous state.
They are conductors of electricity in solid, molten or aqueous state.
ChemistryGrade-9
Chemistry
Which of the following is true about lattice energy?
(i) Lattice energy ∝ charge
(ii) Lattice energy ∝ 1/distance
(iii) Lattice energy ∝ hydration energy
Which of the following is true about lattice energy?
(i) Lattice energy ∝ charge
(ii) Lattice energy ∝ 1/distance
(iii) Lattice energy ∝ hydration energy
ChemistryGrade-9
Chemistry
Ionic compounds conduct electricity when dissolved in water. Which statement below best explains the property?
Ionic compounds conduct electricity when dissolved in water. Which statement below best explains the property?
ChemistryGrade-9
Chemistry
What properties does an ionic compound have?
What properties does an ionic compound have?
ChemistryGrade-9
Chemistry
Which of the following is a property of an ionic compound?
Which of the following is a property of an ionic compound?
ChemistryGrade-9
