Chemistry
Grade-9
Easy
Question
Which among these is a halogen?
- Helium
- Chlorine
- Oxygen
- Neptune
Hint:
The second last group is the halogen.
The correct answer is: Chlorine
- In Mendeleev's periodic table there are 118 elements arranged in 18 groups and 7 periods.
- The second last group is called halogen.
- Chlorine is the halogen.
Related Questions to study
Chemistry
Which color on the image of the periodic table corresponds with the noble gases?

- Red
- Black
- Blue
- Orange
Which color on the image of the periodic table corresponds with the noble gases?

ChemistryGrade-9
- Red
- Black
- Blue
- Orange
Chemistry
What is the name given to the last group in the periodic table?
- Halogens
- Alkali metals
- Noble gases
- Pnicogens
What is the name given to the last group in the periodic table?
ChemistryGrade-9
- Halogens
- Alkali metals
- Noble gases
- Pnicogens
Chemistry
What information does the mass number convey?
- The number of electrons and protons.
- The number of neutrons.
- The number of protons and neutrons.
- The number of protons.
What information does the mass number convey?
ChemistryGrade-9
- The number of electrons and protons.
- The number of neutrons.
- The number of protons and neutrons.
- The number of protons.
Chemistry
How many neutrons are in this element?

- 79
- 197
- 118
- Cannot be determined
How many neutrons are in this element?

ChemistryGrade-9
- 79
- 197
- 118
- Cannot be determined
Chemistry
The atomic number of this Na is
- 23
- 11
- 22
- 16
The atomic number of this Na is
ChemistryGrade-9
- 23
- 11
- 22
- 16
Chemistry
What does in
, X is:
- Atomic mass
- Atomic number
- Element name
- Chemical symbol
What does in
, X is:
ChemistryGrade-9
- Atomic mass
- Atomic number
- Element name
- Chemical symbol
Chemistry
In the representation
, 32 is:
- Atomic mass
- Atomic number
- Element name
- Chemical symbol
In the representation
, 32 is:
ChemistryGrade-9
- Atomic mass
- Atomic number
- Element name
- Chemical symbol
Chemistry
What does in
, Z represent?
- Atomic mass
- Atomic number
- Element name
- Chemical symbol
What does in
, Z represent?
ChemistryGrade-9
- Atomic mass
- Atomic number
- Element name
- Chemical symbol
Chemistry
How many groups are there in the modern periodic table?
- 8
- 9
- 18
- 17
How many groups are there in the modern periodic table?
ChemistryGrade-9
- 8
- 9
- 18
- 17
Chemistry
Choose the correct statement.
- The vertical column in the periodic table is called a period.
- The vertical column in the periodic table is called a group.
- The horizontal row in the periodic table is not called a period.
- None of the above
Choose the correct statement.
ChemistryGrade-9
- The vertical column in the periodic table is called a period.
- The vertical column in the periodic table is called a group.
- The horizontal row in the periodic table is not called a period.
- None of the above
Chemistry
Which one is correct about Mendeleev's periodic law?
- Properties of elements are the periodic function of their atomic mass.
- Physical and chemical properties of elements are periodic functions of their atomic number.
- Physical properties of elements are the periodic functions of their atomic mass.
- Chemical properties of elements are the periodic function of their atomic number.
Which one is correct about Mendeleev's periodic law?
ChemistryGrade-9
- Properties of elements are the periodic function of their atomic mass.
- Physical and chemical properties of elements are periodic functions of their atomic number.
- Physical properties of elements are the periodic functions of their atomic mass.
- Chemical properties of elements are the periodic function of their atomic number.
Chemistry
Elements in the same group have __________.
- Similar Properties
- Same number of shells
- Similar Mass
- Same number of protons
Elements in the same group have __________.
ChemistryGrade-9
- Similar Properties
- Same number of shells
- Similar Mass
- Same number of protons
Chemistry
The vertical rows on the periodic table are called ___________.

- Periods
- Sentences
- Fences
- Groups
The vertical rows on the periodic table are called ___________.

ChemistryGrade-9
- Periods
- Sentences
- Fences
- Groups
Chemistry
Identify number 16 on the periodic table square below.

- Atomic mass
- Element name
- Chemical symbol
- Atomic number
Identify number 16 on the periodic table square below.

ChemistryGrade-9
- Atomic mass
- Element name
- Chemical symbol
- Atomic number
Chemistry
This group of elements sit along a stair step line on the periodic table and have properties of both metals and non-metals:
- Radioactive elements
- Halogens
- Transition metals
- Metalloids
This group of elements sit along a stair step line on the periodic table and have properties of both metals and non-metals:
ChemistryGrade-9
- Radioactive elements
- Halogens
- Transition metals
- Metalloids