What are the heavy elements made out of

This is the uneven distribution of matter that collapsed H and He into areas of concentrated.

These are clouds of dust and gas. Clouds of H and He

This is the spherical mass of H and He. Results of collisions of atoms and increased density of material.

This happens inside the core of the star

This is the formation of new elements through nuclear reaction

These appeared immediately after the big bang

This is the collective term for protons and neutrons.

How many elements are there in the periodic table

How many unstable elements are there in the periodic table

How many artificially produced elements are there

These are atoms that contain elements that have the same number of protons.

He stated that everything in our universe is made from atoms

He accepted Empedocies and associated the 4 fundamental elements of Empedocies.

When did the scientific revolution begin

He proposed that air had weight

He said that air, and other gases consist of tiny particles that are too small to be seen

He experimented with a substance called red calx of mercury.

He stated that gas made some substances acidic

He discovered that certain gases only be combined in certain proportions, solid sphere model

• States that atoms consist of a large sphere of uniform positive charge embedded with smaller negatively charged particles

This model states that the atom has a very small positively charged nucleus that contains most of the mass of the atom

This model states that the electrons move around the nucleus in fixed orbits

He said that the nucleus of an atom contains neutrons, electrically neutral particles with mass like that of a proton.

This model states that the electrons are moving around the nucleus, but not in a fixed orbit

what cleaning material is used for hand washing of glasses, plate, cutlery, and cooking utensils in a sink or bowl.

Which government agency regulates the use of personal care products?

Which of the following isotope is NOT radioactive.

What element makes up 75% of the universe when it was created?

Which of the term means indivisible?

Who proposed the planetary model of atom?

Which of the following is not a subatomic particle

What type of bond is 0-0.4 electronegativity difference value?

What type of bond has 1.7 or more electronegativity difference value?

Which of the following refers to equal or unequal sharing of electrons among the atoms of a molecule

Which of the following refers to equal or unequal sharing of electrons among the atoms of a molecule

Which molecule is soluble in water?

What intermolecular forces of attraction has moderate strength

Which of the following refers to the ability of two liquids to combine or mix in all proportions, creating a homogenous mixture?

Which refers to the ability of liquid to rise in a narrow tube?

What are the building blocks of protein

Which classification of lipids is considered as unhealthy?

What material is used for curtain production?

What kind of compound is composed of carbon?

Which hydrocarbon has triple bond?

Which of the following is classified as complex sugar?

What macromolecule has nucleotide as building blocks?

Which source of energy is equated with garbage?

Which refers to a reaction in which heat is absorbed?

Which of the following refers to the speed by which reactants are converted to products, is referred to as the rate of reaction?

Which of the following refers to the maximum energy needed to initiate a reaction?

What is the study of reaction rates?

Which of the following refers to the efficiency of a reaction

Which of the following refers to the amount of product produced because of the reaction?

Which refers to the quantitative relationships between the substances that are used up and produced in chemical reactions?