Two elements X and Y need to be arranged in Mendeleev's periodic table. X has 3 protons more than Y but their neutrons are equal in number. Which of the following is correct about X and Y?

X will be placed after Y

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Atomic mass of X is less than Y.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

X and Y are isotopes

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Y will be placed after X

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
X will be placed after Y

In Mendeleev's periodic table, elements are arranged according to increasing atomic mass. Now since neutrons and protons are responsible for the atomic mass of an atom, so X will be placed after Y.

Suggest Corrections

Similar questions

Two elements X and Y need to be arranged in Mendeleev's periodic table. X has 3 protons more than Y but their neutrons are equal in number. Which of the following is correct about X and Y?

Which of the following statement (s) about the Modern Periodic Table are incorrect

(i) The elements in the Modern Periodic Table are arranged based on their decreasing atomic number.

(ii) The elements in the Modern Periodic Table are arranged based on their increasing atomic masses.

(iii) Isotopes are placed in an adjoining group (s) in the Periodic Table.

(iv) The elements in the Modern Periodic Table are arranged based on their increasing atomic number.

Q. Statement I : An element with an atomic number of X and mass number of N has N - X neutrons.
Statement II : In periodic table, elements have more neutrons than protons.

Isotopes are the atoms of the same element; they have the same atomic number but different mass numbers. Isotopes have a different number of neutrons in their nucleus. If an element exists in two isotopes having atomic masses 'a' and 'b' in the ratio m: n, then average atomic mass will

\frac{m \times a + n \times b}{m + n}

Different isotopes of the same element have the same position in the periodic table. The elements which have single isotope are called monoisotopic elements. Greater is the percentage composition of an isotope, more will be its abundance in nature.

Answer the following questions:

The ratio of the mass of

^{12} C

atom to that of an atom of element= X (whose atomicity is four) is 1:9. The molecular mass element X is:

Join BYJU'S Learning Program

Two elements X and Y need to be arranged in Mendeleev's periodic table. X has 3 protons more ​​​​​than Y but their neutrons are equal in number. Which of the following is correct about X and Y?

The correct option is A X will be placed after Y In Mendeleev's periodic table, elements are arranged according to increasing atomic mass. Now since neutrons and protons are responsible for the atomic mass of an atom, so X will be placed after Y.

Two elements X and Y need to be arranged in Mendeleev's periodic table. X has 3 protons more than Y but their neutrons are equal in number. Which of the following is correct about X and Y?

The correct option is A
X will be placed after Y

In Mendeleev's periodic table, elements are arranged according to increasing atomic mass. Now since neutrons and protons are responsible for the atomic mass of an atom, so X will be placed after Y.