An atom is electrically
A) positive
B) negative
C) neutral
D) no change
1 Answers
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If two electrons have positive and negative spin values then their spins are ………………..
B) anti parallel
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The energy required to remove an electron from the outermost orbit or shell of a neutral gaseous atom is
B) ionization energy
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State the mathematical expression for a transverse progressive wave travelling along the positive and negative x-axis.
i. Consider a transverse progressive wave whose particle position is described by x and displacement from equilibrium position is described by y. Such a sinusoidal wave can be written as follows: ∴...
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Explain: Atoms are electrically neutral.
1. Matter is made up of atoms which in turn consists of elementary particles proton, neutron and electron. 2. A proton is considered to be positively charged and electron to be...
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How much positive and negative charge is present in 1 g of water? How many electrons are present in it?
Molecular mass of water is 18 gram, that means the number of molecules in 18 gram of water is 6.02 × 1023 ∴ Number of molecules in l gm of water...
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Electric lines of force about a positive point charge and negative point charge are respectively.
(B) radially outward, radially inward
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A neutral metal atom becomes dipositive ion by loosing two”electrons. In the same way a neutral non-metal atom becomes
Correct option is D) m2 x2
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The charge of alpha particles is A) positive B) negative
Correct option is A) positive
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i. Identify the element that exhibits only negative oxidation state. ii. Identify the element that exhibits only positive oxidation state.
i. F: It is most electronegative. It shows only a negative oxidation state of -1. ii. Cs: Alkali metals have only one electron in their valence shell and hence, exhibits only positive...
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Sublimation of Iodine is a (a) Chemical change (b) Physical change (c) Natural change (d) Undesirable change
(b) physical change
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