Atoms are considered.. because theu have mass and other related properties.

Q: Which describes an atom of plutonium?A. It can be divided into smaller particles that retainall the…

A: A. It can be divided into smaller particles that retainall the properties of plutonium.B. It cannot…

Q: a) A sample of a compound containing only carbon and oxygen decompose s and produces 24.50g of…

A: The formula in which the elements are in the simplest whole number molar ratio is termed as…

Q: mass number for the calcium isotope with 22 neutrons

A:

Q: A neutron and a proton combine to form a nucleus why does the mass. Of the nucleus differ from the…

A: Given: A neutron and a proton combine to form a nucleus. And the mass of the nucleus differ from the…

Q: 2. IRON Atcimic Number: Atomic Mass: # of Protons: # of Electrons: # of Neutrons:

A: The atomic number of an element is equal to the number of protons in the nucleus of the atom. In the…

Q: Tin has 10 stable isotopes. The heaviest, 124Sn, makes up 5.80% of naturally occurring tin atoms.…

A: a) The number atoms of 124Sn are present in 25.0 g of naturally occurring tin is to be calculated.…

Q: Which of the following elements would be classified as a nonmetal? a.) silicon  b.) francium c.)…

A:

Q: If an atom were 4.5 football fields long, the nucleus would be the size of   a. a grape seed.   b.…

A: Given: Atom is 4.5 football field long To determine: Size of nucleus

Q: Most elements are classified as _____. a.) metalloids b.) noble gases c.) metals d.) nonmetals

A: There are many elements in the periodic table with differing physical and chemical properties. Some…

Q: 2. Two common air pollutants when analyzed yield the following information; Compound I shows grams…

A: Answer:When one element can combine with the same quantity of the other element to form more than…

Q: True or False -Atomic theory doesn't need to be taken seriously because it's just a theory ....

A: Given statement is, Atomic theory doesn't need to be taken seriously because it's just a theory

Q: Name various radioactive elements.

A: The various names of radioactive elements are named as in step 2.

Q: What elemnet is this according to the clue: It has chemical properties like carbon but 1 more shell…

A: Chemical properties of any element depends upon the type of electronic arrangement in its valence…

Q: Atoms of a specific element that have the same number of protons but a different number of neutrons…

A: An atom is made up of protons, neutrons, and electrons. Protons and neutrons together called…

Q: Which part of the atom has most of mass ?

A: Most of an atom's mass is in its nucleus.

Q: Hydrogen and oxygen react to form water, together they are a  .... - molecule - compound -…

A: Hydrogen and oxygen are atoms that combine to form water

Q: 1.) The chemical formula for the ionic compound formed when elements of Ca and N react is , when…

A: Chemical formula of an ionic compound can be formed by criss-crossing the valencies of ions.

Q: The atomic mass unit is based on the mass of the _________ atom.

A:

Q: atoms

A: it is made of 3 tiny partical  known as electron ,proton and neutron  Neutron  and proton make…

Q: A student says,A carbon atom is not the smallest possible amount of carbon, because atoms are built…

A: An atom contains electrons, protons and neutrons. Therefore, a carbon atom is composed of its…

Q: What is the mass of one atom of Calciumin atomic mass units?

A:

Q: What is the representative particle, mass(g), no. of particles of carbon dioxide

A: 1mole of any substance contains 6.023*1023 molecules or particles, it is also called one avagadros…

Q: An atom with the same number of protons, but a different number of electrons is called a(n)   a.…

A: The atomic number of an atom is the number of protons present in the atom. For a neutral atom, the…

Q: Which of the following is a property of carbon atoms? im not sure which one because arent carbon…

A: The atomic number of carbon (C) is 6. Therefore, its electronic configuration is 1s2 2s2 2p2. There…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.