What Is The Identifying Subatomic Particle

What is the identifying subatomic particle?

Explanation: The identity of the element is determined by the number of protons, which are positively charged, massive nuclear particles. The number of protons in a nucleus is given by Z , the atomic number.

Which subatomic particle determines the reactivity of an element?

The number of electrons in the outermost shell of an atom determines its reactivity.

Which particle determines the charge of the element?

Answer and Explanation: The number of electrons in an atom determines the electrical charge of the atom. It the number of electrons is equal to the number of protons, then the electrical charge is neutral. If the number of electrons is greater than the number of protons, then the charge is negative.

How do you identify an element?

The identity of an element is determined by the number of protons. One cannot alter the number of protons without altering the identity of the element. By adding a proton, the atomic number increases by one and the element identity changes. Number of neutrons can be altered to create isotopes.

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What is used to identify an atom?

The number of protons in the nucleus of an atom is its atomic number (Z). This is the defining trait of an element: Its value determines the identity of the atom. For example, any atom that contains six protons is the element carbon and has the atomic number 6, regardless of how many neutrons or electrons it may have.

Which particle has the smallest mass?

The fundamental particle that has least mass is electron.

What subatomic particles determine the mass of an atom?

Together, the number of protons and the number of neutrons determine an element’s mass number: mass number = protons + neutrons.

What is a family of elements?

An element family is a column of elements on the periodic table. Each member of a family has the same number of valence electrons. Family members share similar chemical and physical properties. An element family is also called an element group.

What is the most important subatomic particle?

Answer and Explanation: While each subatomic particle can be said to be important, one could argue that the proton is the most important subatomic particle. This is the positively charged particle found in the nucleus of the atom.

What is inside a quark?

Quarks and gluons are the building blocks of protons and neutrons, which in turn are the building blocks of atomic nuclei. Scientists’ current understanding is that quarks and gluons are indivisible—they cannot be broken down into smaller components.

How small is an atom?


What atom determines an element’s reactivity?

The number of electrons in the outermost shell of a particular atom determines its reactivity, or tendency to form chemical bonds with other atoms.

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What determines the reactivity of metals?

The reactivity of a metal depends on how easily it loses electrons. Electrons are negatively charged particles that occur on the outer shell of atoms. Chemical reactions occur as the result of electron gain or loss. Reactive metals will lose electrons as the result of contact with acids or, in some cases, water.

What are the factors that determine the reactivity of elements?

Four major factors affect reactivity of metals: nuclear charge, atomic radius, shielding effect and sublevel arrangement (of electrons). Metal reactivity relates to ability to lose electrons (oxidize), form basic hydroxides, form ionic compounds with non-metals.

What subatomic particles most influenced reactivity?

The factor that most strongly governs the tendency of an atom to participate in chemical reactions is the number of electrons in its valence shell. A valence shell is an atom’s outermost electron shell.