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Atoms of an element differ from those of all other elements in

atomic number and electronic configuration
number of neutrons and number of valence electrons
atomic number and number of valence electrons
number of neutrons and electronic configuration
Additional Questions

Nuclear fission is caused by the impact of

Answer

Which of the following rays are more penetrating?

Answer

How many colours the sunlight spectrum has?

Answer

The light of distant stars is affected by

Answer

The landmass of which of the following continents is the least?

Answer

Without ____ the equator would be much hotter than it is while the poles would be much cooler.

Answer

The habitats valuable for commercially harvested species are called

Answer

Which of the following is tropical grassland?

Answer

With the disintegration of USSR in end 1991, comprised of ____ Union Republics.

Answer

The iron and steel industries of which of the following countries are almost fully dependent on imported raw materials?

Answer
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