3. Which species has a negative charge? A. a lithium ion B. an alpha particle С. an aluminum ion D. a beta particle In the reaction AI + He P+ X, the particle represented by X is 4. 15 А. a beta particle B. a neutron C. an electron D. an alpha particle

Q: Isotopes are defined as atoms ofa. the same element with different numbers of protons.b. radioactive…

A: Atoms of the same element have the same number of protons, which is also called the atomic number.

Q: All atoms of a given element have the same ______.mass number. c. number of nucleons.number of…

A: An atom is composed up of three subatomic particles  electrons, protons, and neutrons.

Q: 19. How best describes isotopes?     20. Who discovered lectrons?

A:

Q: A. For the isotope chlorine-37: a. How many protons are in chlorine-37? b. How many neutrons are in…

A: THe objective of the question is answer the questions related to .

Q: D Only one of the following atomic notations is written correctly. a. 3478Se b. 2⁹90 73 328e d.…

A: Atomic number of an element is equal to number of protons.Mass number of an element or an atom is…

Q: What is an atom's mass number? number of protons plus number of neutrons O number of electrons O…

A: We have to predict correct option for mass number.

Q: 85 11. For the Isotope 38Sr A. What is the atomic number? B. What is the mass number? C. What is the…

A: The given symbol for isotope is 8538Sr A) The atomic number is represented by the subscript.     The…

Q: 1. A carbon atom with 7 neutrons, and a positive charge. 2. A nitrogen atom with 7 neutrons, 8…

A: Given We know about the number of protone ,nutron  and charge

Q: 12. Which substance would have the highest boiling point? a. Propane b. Propanol c. 1-Propanamine d.…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Which of the following is False?a. An element is defined by its atomic number.b. Ninety-two elements…

A:

Q: There are electrons and +2 neutrons in the ion of Cd Atomic number: 48 Mass number : 112 O A. 46, 48…

A: Given ion,    Cd2+ ion    Mass number = 112    Atomic number = 48

Q: 5. has the same number of protons with number of neutrons c. acids b. isotopes d. hydrates

A: To solve this problem we have to know about isotopes.  Isotopes are the species of same element…

Q: 10. What is the mass number of a helium atom that has two protons and two neutrons?

A:

Q: If two neutral atoms are isotopes of each other, which of the following statements are true. More…

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: How many protons and neutrons are contained in the nucleus of each of the following atoms? Assuming…

A: Hi, since you have posted multiple subparts question, we will answer the first three subparts for…

Q: The mass number of an element is equal toa. the mass of its atom’s protons and neutrons.b. the mass…

A: An atom consists of three sub-atomic particles named electron, proton and neutron. The mass of an…

Q: 21. What force holds electrons near the nucleus of the atom? A. Strong nuclear force B.…

A: From the concept of periodic trends of elements and atomic mass of elements the following questions…

Q: the neutral atoms of all of the isotopes of the same elements have. A. different numbers of protons…

A: Given : Neutral atoms of all isotopes of same elements.

Q: Isotopes of an element have the same number of:A. electrons, but different numbers of protons.B.…

A: Isotopes can be defined as the variants of chemical elements that possess the same number of protons…

Q: 21. The elements in Group 7A are known by what name? A. transition metals B. halogens oli m D.…

A: Group 7A of the periodic table consists of the elements: fluorine (F), chlorine (Cl), bromine (Br),…

Q: What is the atomic mass of boron-12? A. 13.00335 amu B. 4.00260 amu C. 18.99840 amu D. --…

A: Since boron has atomic number = 5  Hence number of electrons in boron = 5 and to become neutral atom…

Q: 15. How many subatomic particles are there in C-14  A. 6 B. 8 C. 14 D. 20

A: There are three subatomic particles present in any atom or element- protons, neutrons and electrons.…

Q: Consider an isotope of sulfur with a mass number of 32. The number of neutrons in this isotope of…

A: Given:mass no. of S = 32we know that,atomic no of S = 16alos,no of proton = atomic nono of proton in…

Q: Write symbols for each isotope:a. Each atom contains one proton and zero neutrons.b. Each atom…

A: Isotopes are the elements which has same atomic number but have different mass number. Example= D12…

Q: Write symbols for each isotope:a. Each atom contains one proton and two neutrons.b. Each atom…

A: Isotopes are the elements with same atomic number but different mass number.  Atomic number (Z)…

Q: 15 Which best describes the atom: 26Fe A. 56 protons, 26 neutrons B. 26 protons, 30 neutrons C. 26…

A: Since you have asked a question with multiple sub-parts, as per our company guidelines we are…

Q: Protons, neutrons and electrons each have a mass of 1 amu. a. True b. False

A: The mass of an electron is 0.000549 amu. The mass of proton and neutron is approximately 1 amu.…

Q: The identity of a nucleus is determined by its   A. proton #   B. radioactive intensity   C.…

A: Nucleus of an atom contains proton and neutron.

Q: Based on its outer shell, the atom in figure 2.5 would be characterized as _

A: The total no of electrons = 2 The atom represented has only one orbit that has 2 electrons.

Q: Isotopes have the same number of a. Protons; electrons Ob. Neutrons; protons c. Electrons, protons…

A: Isotopes are two or more forms of same element which consist of equal numbers of protons but…

Q: What is the charge on the electron, the proton, and the neutron, respectively? a.-1, +1, +1 b. -1,…

A: Write charge and mass of electron, proton and neutron ---

Q: 1. All atoms of a given element have the same c. number of nucleons. d. number of protons. a. mass…

A: 1. Answer - The correct option is (d) number of proton. All atoms of an element have the same number…

Q: Which of the following is the least massive?  a. A neutron b. A proton c. An alpha particle d.…

A:

Q: nitrogen-14 and nitrogen-15, different? A. Different number of neutrons B. Different protons and…

A: Isotopes are the elements of same atom which have number of protons and different number of Neutrons…

Q: Complete the following statements: a. The atomic number gives the number of _______ in the nucleus.…

A: The number of protons, neutrons and electrons which make up a neutral atom has to be given. A…

Q: Where are particles with virtually no mass found in the atom? A. The electron cloud B. Inside the…

A: Ans  A)  The electron cloud .

Q: 30. When an atom gains 2 electrons, it turns in to a(n) A. cation with a 2* charge B. cation with a…

A: Concept: Atoms on  gain of electron forms anion with negative charge. Atom on  loss of electron…

Q: Fill in the blanks:a. Isotopes of an element differ in mass because the atomshave a different number…

A: The complete statements have to be provided.

Q: 1. Rubidium has two naturally occurring isotopes, from the following data calculate the value of X?…

A:

Q: From the results of his gold foil experiment, Rutherford concluded that   Group of answer choices A.…

A: From the results of his gold foil experiment, Rutherford concluded that atoms are composed of a…

Q: a. Atomic Number on the Periodic Table b. Positive charge particle located in the nucleus c.…

A:

Group 14 Elements

The following elements come under group 14 of the periodic table.