Which Best Describes the Mass of an Atom

1 272 protons and 111 neutrons. What is the mass number of.

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The number of neutrons in the atom the number of protons electrons and neutrons in the atom the number of protons in the atom the number of electrons in the atom Question 17 The sodium atom contains 11 electrons 11 protons and 12 neutrons.

. The downhill flow of soil and rock resulting from gravity best describes mass movement. The mass of an atom and its positive charge is located in the center of the atom. This atom has 1 28 protons in its nucleus.

Which sentence best describes mass movement. A12 protons 12 neutrons and 12 electrons B11 protons 11 neutrons and. Element number 111 is called roentgenium.

O I II O I III O II III O I II III. II Smaller-mass negative charges are found outside the nucleus. Protons and electrons are grouped together in an alternating patternc.

The nucleus occupies most of the stoms volume and contains most of its mass. An atom has 29 protons 29 electrons and 35 neutrons. Which statement best describes the density of an atoms nucleus.

C The nucleus occupies most of the atoms volume and contains most of its mass. A The nucleus occupies most of the atoms volume but contains little of its mass. An atom consists of a central nucleus with proton neutrons and electrons orbiting in levels of high probability.

A core of protons and neutrons surrounded by electrons Which student correctly. This was based upon the bright-line spectra of molecular hydrogen and lead to postulates that describe the electronic structure of the atom as having electrons in discrete energy levels and orbiting the nucleus much like planets orbit a star. A neutral chlorine Cl atom contains 17 protons and 18 neutrons.

III - Large-mass neutral charges are found outside the nucleus. The atomic mass of an atom is the sum of the mass of its protons neutrons and electrons. Which statement best describes the quantum mechanical modern model of the atom.

An atom has 3 protons 4 neutrons and 3 electrons. 4 64 protons orbiting its nucleus. The positive part of the atom is small and dense.

Atoms are composed of negatively charged particles embedded within a positively charged sphere. Which statement best describes the electrons in this illustration. Which of the following is the furthest from the center of an atomProtonsNeutronsElectrons Nucleus Which of the following best describes an atoma.

Which statement best describes the part of the atom that is shown by the arrow. Reactants in a chemical reaction rearrange to form a new substance or substances C. 2 64 protons in its nucleus.

The hydrogen atom is the lightest atom whose mass is 167 x 10²⁷kg measured using a mass spectrometer and simplified to 1 amu atomic mass unit. The atoms of solid materials are rough while the atoms of liquids are smooth. The atomic mass of an atom is the sum of the mass of its protons and electrons.

Which best describes the nucleus of an atom of this element having a mass of 272 amu. Benchmark 1 Review DRAFT. Matter cannot be created or destroyed in a chemical reaction B.

Which statement best describes the law of conservation of mass. An atom of nickel has a mass of 64 amu. It is the weighted average of the masses of an elements isotopes.

See answer 1 Best Answer. Reactants and products cannot escape from a closed system D. What is the mass number of the atom.

Electron location is described according. While the mass of 1 proton is equal to the mass of 1 neutron equal to 1 amu and the electron has a mass smaller than both. 3 28 protons orbiting its nucleus.

Its existence was hypothesized based on observations of larger samples of matter. The downhill flow of soil and rock resulting from gravity. According to the Bohrs atomic model the electrons revolve around the nucleus in a fixed orbit.

Which particles make up the mass of an atom. Science Physics QA Library Which of the following best describes the atom. Electrons orbit the nucleus in defined orbits like the planets orbit the sun.

The majority of the mass of an atom is outside of the nucleus. D The nucleus occupies very little of the atoms volume. Due to this high probability orbits are replaced by the term orbital.

Atomic number also called proton number refers to the. Which of the following best describes the atomic number of an atom. Electrons are positively charged particles in the nucleus.

Which of the following best describes JJ. Electrons are equally distributed throughout a positively charged core. Protons and electrons are grouped together in a random patternb.

The movement of particles within an atom B. B The nucleus occupies very little of the atoms and contains little of its mass. I - Large-mass positive charges are found inside the nucleus.

8th - University grade. Which of the following best describes the discovery of the atom. The atomic mass of an atom is the sum of the mass of its protons neutrons and electrons.

Which statement best describes the density of an atoms nucleus. Use the periodic table to determine which atom would have similar chemical properties to this atom. 1 amu 16610²⁴ grams The mass of each basic particle.

A the number of protons in the atom B the number of electrons in the atom C the number of neutrons in the atom D the number of protons electrons and neutrons in the atom E the net electrical charge of the atom. Chemical symbols are used to show atom balance before and after a. 4 years ago.

A The nucleus occupies most of the atoms volume but contains little of its mass The nucleus occupies very little of the stons volume and contains little of its mass. Question 18 Which of the following best describes the atomic number of an atom. Electrons are negatively charged particles in the nucleus.

Which of the following best describes an atom. Which best describes the current model of the atom.

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