answersLogoWhite

0

What else can I help you with?

Continue Learning about Natural Sciences

What two elements in the fifth period violate the original periodic law as stated by Mendeleev?

THse elements are tellurium and iodine.


What did John Dalton get wrong?

Thse affirmations are not considered valid today:· All atoms of a given element are identical. · A given compound always has the same relative numbers of types of atoms.


What factors can affect the time it takes for an ice cube to melt?

Factors that can affect the time it takes for an ice cube to melt include the temperature of the surrounding environment, the size and shape of the ice cube, the material it is placed on, and the presence of any insulating barriers. High temperatures, small ice cube size, direct contact with a warm surface, and lack of insulation can all contribute to faster melting.


Where did hydrogen and helium in the universe come from?

Hydrogen and helium were mainly produced during the Big Bang, the event that created the universe. Roughly 75% of the normal matter in the universe is hydrogen and about 25% is helium. These elements have since played a fundamental role in the formation and evolution of all other elements in the universe through processes like nuclear fusion in stars.


What happens molecularly when a substance goes through a phases to get from a solid to a gas?

The particle theory states that all particles are made of matter, these particles are in constant motion and there is a force of attraction between these particles. Solids have more closely packed particles and thse particles get looser as they progress through the states from liquid to gas. Therefore, moleculary, the molecules move faster and faster and appear farther and farther away from each other.