Bissoy.com
Doctors Medicines MCQs Q&A

How many natural halogen elements are there in the halogen group in the modern periodic table?

How many natural halogen elements are there in the halogen group in the modern periodic table? Correct Answer 5

The correct answer is option 2, i.e. 5.

  • Fluorine is the most electro-negative element among all other halogens.
  • The descending order of electronegativity in the halogens is F>Cl>B>I>At>Ts.
  • Electronegativity is defined as the ability of an atom in a chemical compound to attract a shared electron to itself.
  • The group number 17 is known as the Halogen group.
  • Halogen means "Salt-producing" as they produce salt when reacts with a metal.
  • The five natural halogen elements are;
    • Fluorine(F), atomic number 9.
    • Chlorine(Cl), atomic number 17.
    • Bromine(Br), atomic number 35.
    • Iodine(I), atomic number 53.
    • Astatine(At), atomic number 85.
  • Tennessine(Ts), is also a halogen element but it is artificially created. The atomic number of Ts is 117.

Related Questions

Which of the following statement(s) is/are false regarding the modern periodic table? i. In the modern periodic table, the elements are arranged in decreasing order of their atomic numbers. ii. In the modern periodic table, the elements are arranged in increasing order of their atomic masses. iii. In the modern periodic table, isotopes are placed in adjacent groups. iv. In the modern periodic table, the elements are arranged in increasing order of their atomic numbers.
Which of the following statements is/are false regarding modern periodic table?
1. Elements in the modern periodic table are arranged in decreasing order of their atomic numbers.
2. Elements in the modern periodic table are arranged in increasing order of their atomic masses.
3. In the modern periodic table, isotopes are placed in adjacent groups.
4. Elements in modern periodic table are arranged in increasing order of their atomic numbers.
Which of the following statements are true regarding the trends in the modern periodic table? i. Atomic radius increases on going right in the periodic table. ii. Ionization energy increases as we go right in the periodic table. iii. Electron affinity increases as we go down in the group.
Consider the following two C code segment. Y and X are one- and two-dimensional arrays of size n and n × n respectively, where 2 ≤ n ≤ 10. Assume that in both code segments, elements of y are initialized to 0 and each element X[i] [j] of array X is initialized to i + j. Further assume that when stored in main memory all elements of x are in same main memory page frame. Code segment 1:                 //initialize elements of y to 0                 //initialize elements X[i] [j] of X to i+j                       for (i = 0; i < n; i++)                                 Y[i] += X[0] [i]; Code Segment 2:                 //initialize elements of Y to 0                 //initialize elements X[i] [j] of X to i+j                        for (i = 0; i < n; i++)                                 Y[i] += X[i] [0]; Which of the following statements is/are correct? S1: Final contents of array Y will be same in both code segments S2: Elements of array X accessed inside the for loop shown in code segment 1 are contiguous in main memory S3: Elements of array X accessed inside the for loop shown in code segment 2 are contiguous in main memory
Which element was assigned Group III A in the Mendeleev's periodic table but is a member of Group-13 in the modern periodic table?
Which of the given statements is/are correct?
1. The elements of the second group are called alkali metals.
2. The elements of the first group are called alkaline soil metals.
3. Elements of the 17th group are called halogen.
In Mendeleev's periodic table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later?
In the Mendeleev periodic table, gaps were left for the undiscovered elements. Which of the following elements found a place in the periodic table later ?
In Mendeleev’s periodic table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later?
In the Mendeleev periodic table, gaps were left for undiscovered elements. Which of the following elements later found a place in the periodic table?