Related Questions

When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as
A Isomers
B Isotopes
C Isobars
D Isotones
How many atoms are present in one molecule of Ozone?
A 4
B 1
C 2
D 3
Identify the sentence in which the word element (s) refers to 'suitable or favourable environment. (1) There is an element of truth in your story. (2) Water is composed of elements of hydrogen and oxygen. (3) I feel out of my elements in political discussions. (4) Water is a natural element for fish
A (4)
B (3)
C (1) and (2)
D (1)
The __________ element must reference either an ‘altGlyphDef’ element or a ‘glyph’ element.
A href
B src
C animate
D altGlyph
Which one is different for the neutral atoms of the isotopes of an element?
A Number of electrons
B Atomic weight
C Atomic number
D Number of Protons
Is an element used in semiconductors whose atoms have three valence electrons.
A An acceptor
B A donor
C Germanium
D Silicon
Atoms of same element having different mass numbers are called________
A Isobars
B Isotopes
C Isotones
D Isomers
Atoms of the same element, but of different masses are called
A Isobars
B Isotones
C Isotopes
D None of these
A mixture contains 2/5 of element A and 3/5 of element B. When 5ml of A is added to the mixture, the proportion of B in the mixture changes to 1/5. What amount of A was originally present in the mixture before the addition was made ?
A 1ml
B 1.5ml
C 2.5ml
D 6ml
Neutrons are present in all atoms except that of
A He
B C
C H
D Ar

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