Electrons possess a negative charge,and protons possess a positive charge. An atom contains both,but why does it have no net charge?
- AThe number of protons is zero.
- BThe number of electrons is zero.
- CThe negative and positive charges are equal in magnitude and cancel each other out.
- DThe atom does not contain any subatomic particles.
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Similar Questions
An atom with $3$ protons and $4$ neutrons will have a valency of:
Easy
View SolutionDalton's atomic theory successfully explained which of the following laws?
$(i)$ Law of conservation of mass
$(ii)$ Law of constant composition
$(iii)$ Law of radioactivity
$(iv)$ Law of multiple proportion
$(i)$ Law of conservation of mass
$(ii)$ Law of constant composition
$(iii)$ Law of radioactivity
$(iv)$ Law of multiple proportion
Medium
View SolutionRutherford designed an experiment to determine the structure of an atom. Answer the following in relation to this experiment:
$(a)$ Name the element he selected for this purpose.
$(b)$ Which subatomic particle was used by him?
$(c)$ What was the drawback of Rutherford's model of the atom?
$(a)$ Name the element he selected for this purpose.
$(b)$ Which subatomic particle was used by him?
$(c)$ What was the drawback of Rutherford's model of the atom?
Medium
View SolutionAn alpha particle is also known as
Easy
View SolutionThe following data represents the distribution of electrons,protons,and neutrons in atoms of four elements $A, B, C, D.$
Element Protons,Neutrons,Electrons $A$ $9, 10, 9$ $B$ $16, 16, 16$ $C$ $12, 12, 12$ $D$ $17, 22, 17$
Answer the following questions:
$(a)$ Give the electronic distribution of element $B.$
$(b)$ The valency of element $A$.
$(c)$ The atomic number of element $B.$
$(d)$ The mass number of element $D$.
| Element | Protons,Neutrons,Electrons |
| $A$ | $9, 10, 9$ |
| $B$ | $16, 16, 16$ |
| $C$ | $12, 12, 12$ |
| $D$ | $17, 22, 17$ |
Answer the following questions:
$(a)$ Give the electronic distribution of element $B.$
$(b)$ The valency of element $A$.
$(c)$ The atomic number of element $B.$
$(d)$ The mass number of element $D$.
Medium
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