Neutron

Q. Why isn't there any neutron in a hydrogen atom?

Q.

What is the lightest subatomic particle?

Q.

Can we make the water by taking hydrogen and oxygen?

Q.

An atom has an atomic number of 19 and a mass number of 39. How many electron , protons and neutrons does it have?

Q.

What is the basic structure of the atom?

Q.

Compare the characteristics of electron, proton and neutron

Q. What is the ratio of the number of neutrons present in potassium (Z=19) and magnesium (Z=12) atoms with mass numbers 39 and 24, respectively? (Z = atomic number)​

1. 9 : 12
2. 5 : 3
3. 5 : 6
4. 4 : 3

Q. Which of the following is not a charged particle?

1. Electron
2. Neutron
3. Nucleons
4. Proton

Q. Which of the following statements is always correct?

1. An atom has equal number of electrons and protons.
2. An atom has equal number of electrons and neutrons.
3. An atom has equal number of protons and neutrons.
4. An atom has equal number of electrons, protons and neutrons

Q.

Why do protons don't move?

Q. What is the mass number of element X which has 8 electrons and 8 neutrons?

1. 16

Q. Atoms have electrons, protons, and neutrons as the fundamental particles. The electrical charge of an atom is-

1. Positive
2. Neutral
3. Cannot be predicted
4. Negative

Q.

what are the charges and masses of proton, deutron, and alpha-particles.

Q. What is atom , nucleas and molucules

Q.

State three ways in which a proton differs from an electron.

Q.

Consider the following table in which the elements from A to E are hypothetical :

ELEMENT	PROTONS	NEUTRONS	ELECTRONS
A	9	10	9
B	17	18	17
C	10	10	10
D	6	6	6
E	17	20	17

Choose from the letters which represent :

1. an element with mass number 19
2. an element having atomic number 10.

Q.

What are quarks and hadrons inside an atom

Q.

Which particles are considered as heavy and remain fixed in their positions?

1. Positrons

2. Electrons

3. Protons

4. Cannot be ascertained

Q. Ratio of number of atoms present in 50g of CaCO3 and 60 g of SO3 is. 1) 5 : 6. 2) 1: 1. 3) 3 : 5 4) 2 : 5

Q.

___ is a subatomic particle, with no net electric charge and a mass slightly larger than that of a proton.

Q.

____ is the fundamental particle that is not present in the nucleus of a hydrogen atom.

1. Electron

2. Proton

3. Nucleon

4. Neutron

Q.

___ is the fundamental particle that is not present in the nucleus of a Hydrogen atom.

Q.

Identify whether the following statement is true or false.

An atom on the whole has a positive charge.

1. True
2. False

Q. What are electrons and proyons

Q. what will be the ratio of total number of electrons in 2g of D2O to that in 1.8g of H2O?

Q.

name the subatomic particles present in an atom