All uranium atoms do not have the same atomic weight.

所有的铀原子并非都有相同的原子量.

The atomic weight is a ratio quite distinct from the weight in grams.

原子量是与以克为单位的重量完全不同的比率.

Hydrogen is the lightest element with an atomic weight of 1.008.

氢是最轻的元素,原子量为1.008.

Gallium's atomic weight is 69.72. A cubic centimeter of it weighs 5.9 grams.

镓的原子量为69.72，每立方厘米重5.9克。

Atoms of the same element that differ in their atomic weight are called isotopes .

具有不同原子量的同一种元素被称为同位素。

His accurate determinations of the atomic weight of a large number of chemical elements

精确测定了大量化学元素的原子量

An arrangement of 56 elements in order of ascending atomic weight made by Newlands in 1863.

1863年，纽兰茨所作。他将56种元素按原子量上升次序排列。

A microscale experiment using simple instrument was applied to the determination of Cu atomic weight.

利用自制的简易气体发生器和洗气装置对铜原子量测定微型实验作了进一步的探索与实践.

An isotope of hydrogen with one proton and one neutron in the nucleus having an atomic weight of2.014.

氘氢的一种同位素，在其原子核内有一个质子和一个中子，其原子重量为2。

First of all, an atom of eka-aluminum has an atomic weight of 68, about 68 times heavier than a hydrogen atom.

第一，类铝的原子量为68，比氢原子重约68倍。