The atom would have to be regarded as a compound unit made up of several parts.
In the simplest case one atom of the one element combines with one atom of the other.
In other cases, particularly among the metals, the molecule and the atom are identical.
Each ion carries a heavy electrical charge, and in this respect differs from an atom or molecule.
I find the omnipresence and the almightiness in the reaction of every atom in Nature.
These compounds of higher value, therefore, contain more than one nitrogen atom in the molecule.
The thiosulphates may be regarded as sulphates in which one atom of oxygen has been replaced by an atom of sulphur.
It has been found that an atom of hydrogen is never able to hold in combination more than one atom of any other element.
Dalton applied the name atom not only to the minute particles of the elements but also to the least particles of compounds.
The valence of an element is that property which determines the number of the atoms of another element which its atom can hold in combination.
He thought that when only one compound of two elements is known it is reasonable to suppose that it contains one atom of each element.
One atom of each of the elements combines with one atom of hydrogen to form acids, which are gases very soluble in water.
When atoms combine, each unit valence of one atom combines with a unit valence of another atom.
In each case 1 atom of the metal replaces 2 atoms of hydrogen in the acid, and the hydrogen escapes as a gas.
If one atom of oxygen combines with one atom of zinc, then this ratio must be the ratio between the weights of the two atoms.
As the telltale sentence left her lips, every atom of strength wilted out of her, and she sank back into her chair all sick and faint and shuddery.
If one atom of oxygen combines with two atoms of zinc, then the ratio between the weights of the two atoms will be 16: 32.7.
HgO will in this way represent mercuric oxide, a molecule of which has been found to contain 1 atom each of mercury and oxygen.
But each of these 200 molecules must contain at least one atom of oxygen, or 200 in all, and these 200 atoms came from 100 molecules of oxygen.
Thus one atom unites with one other, or with two or three; or two atoms may unite with three, or three with five, and so on.
The alcoholic in proportion to its strength is mental chaos and paralysis to power, and it has not the virtue to contain an atom that can be converted into a living atom.
The molecule of water, being composed of 2 atoms of hydrogen and 1 atom of oxygen, must therefore weigh relatively 2.016 + 16, or 18.016.
If these views in regard to radium should prove to be well founded, it will be necessary to modify in some respects the conception of the atom as developed in a former chapter.
The ratio by weight of a zinc to an hydrogen atom is 65.4: 1.008; of 1 zinc atom to 2 hydrogen atoms, 65.4: 2.016.
Accordingly it is best to adopt oxygen as the standard element with which to compare the molecular weights of other gases, being careful to keep the oxygen atom equal to 16.
Short & Simple Example Sentence For Atom | Atom Sentence
Every atom of their strength is used.
He summoned his last atom of strength.
No atom of matter is exempt from its sway.
Is the molecule and the atom of oxygen the same thing?
No living atom comes at last to naught!
Harry Edgham had not an atom of tact.
I Shall meet one atom that was you.
Elements of the same valence will therefore combine atom for atom.
Every atom of pride and protection in his soul was enlisted.
An atom is the smallest particle of an element which can exist.
But it might have been hanging on the tiniest atom of a fractional difference.
Every atom of blood in her body was working instantly in her brain.
She swayed with only an atom of gravity lacking to send her to death below.
It will be seen that 1 atom of zinc will liberate 2 atoms of hydrogen.
In this "formula of progress" there is not one atom of Marxism.
Definition of Atom
(chemistry, physics) The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons. [from 16th c.] | (history of science) A hypothetical particle posited by Greek philosophers as an ultimate and indivisible component of matter. [from 15th c.] | (now generally regarded figuratively) The smallest, indivisible constituent part or unit of something. [from 17th c.]
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