हिंदी
तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ७

State true or false. If false, correct the statement. An atom is electrically neutral.

Advertisements
Advertisements

प्रश्न

State true or false. If false, correct the statement.

An atom is electrically neutral.

विकल्प

  • True

  • False

MCQ
सत्य या असत्य
Advertisements

उत्तर

An atom is electrically neutral- True

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Atomic Structure - Evaluation [पृष्ठ ५१]

APPEARS IN

सामाचीर कलवी Science - Term 1 [English] Class 7 TN Board
अध्याय 4 Atomic Structure
Evaluation | Q IV. 3. | पृष्ठ ५१

संबंधित प्रश्न

ANSWER IN DETAIL

State the postulates of the Dalton’s atomic theory.


Write the names of `"FeS"` compounds :


Fill in the blank

An ion with negative charge is called _______


Define: Mass number


What is the maximum number of electrons present in:

1. first shell
2. second shell
3. third shell and
4. fourth shell


A certain particle ‘X’ has 17 protons, 18 electrons and 20 neutrons.

What is the mass number of X?


Name the three subatomic particles present in an atom.


What are the building blocks of matter ?


Dalton's atomic theory says that atoms are indivisible. Is this statement still valid ? Give reasons for your answer.


Which of the following statement is correct about the atom of an element ?


Name the gas that.

Turns moist starch iodide paper blue black.


Elements X and Y have 1 and 7 electrons in their outermost shell respectively.

Which element will lose electron?


Draw the basic structure of an atom representing its –

  1. Subatomic particles
  2. Nucleus
  3. Orbits or shells.

A radical take part – unsplit in a chemical reaction and retains its identity in reactions.
With reference to the radical –

  1. ammonium
  2. bisulphate
  3. carbonate

state the group of atoms present in each radical.


State true or false. If false, correct the statement.

The basic unit of an element is molecule.


Define the following term with an example.

Metal


An element is composed of ______ atoms.


The volume occupied by 1 mole of a diatomic gas at S.T.P is ______


Which of the following has maximum number of atoms?


A change in the physical state can be brought about


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×