Give the name of the formula of elements 1, Co Cl2 2, N2 H4 3, BF3 What is the meaning of isotopy?

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located In the outer Solar…

A: The isotopes are elements having same atomic number with different mass number, which have same…

Q: How can iodine (Z = 53) have a higher atomic number yet a lower atomic mass than tellurium (Z = 52)?

A: An atom is made up of three particles namely, protons, neutrons, and electrons. The protons and…

Q: The newly discovered element Nh (Nihonium), with atomic number 113, would be a member of which…

A: Atomic number of this newly discovered element Nihonium (Nh) is 113. In the periodic table, period…

Q: 66. Which element do you expect to be most like magnesium? Why?(a) potassium(b) silver(c) bromine(d)…

A: Magnesium = Its atomic number is 12, and present in Group 2 in the periodic table.

Q: 4. Identify the Z + 8 element for Si.

A: 4.   Given: Element is Silicon (Si) We have to find the element which is Z+8 for Si

Q: 1)    The element gallium (Ga) exists in two isotopic forms with the following abundances: 60.16%…

A:

Q: Which two of these elements would you expect to show the greatest similarity in chemical and…

A: The elements which are expected to show the greatest similarity in chemical and physical properties…

Q: Write the empirical formula corresponding to each of the following molecular formulas: (a) Al;Bre;…

A: Empirical formula gives simple whole number ratio of atoms of various elements present in one…

Q: Arrange the following atoms by increasing number of neutrons. 134Ba, 134Ce, 134Xe

A: Given:

Q: The species, 4521X2- is:   an anion, with 21, protons, 24 neutrons, and 24 electrons   an anion,…

A:

Q: How many valence electrons does an element in each group contain: (a) 2A; (b) 4A; (c) 7A?

A: (a)  Group 2A : Valence electrons = 2 (b)  Group 4A : Valence electrons = 4 (c)  Group 7A : Valence…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Answer:We are given percentage abundance of two isotopes of Sn along with their atomic masses and we…

Q: 6. Which row in the table is INCORRECT? (a) (b) (c) (d) (e) Symbol 79Se2 P 107 Ag+ 55Mn SV 130-…

A:

Q: In the given three-dimensional molecular structure, the differently colored spheres represent…

A: The compound given is,

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: given  isotope        mass       relative abundance 92 mo            91.91          98% 97mo…

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A:

Q: How can iodine (Z=53) have a higher atomic number yet alower atomic mass than tellurium (Z=52)?

A: lodine (Z=53) has a higher atomic number than tellurium (Z=52). But the atomic mass of iodine is…

Q: How many protons, electrons, and neutrons does the Vanadium +5 ion (V) have?

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: 9.Which of the following elements is in Group 6B?   a, Cs b, Po c, O d, Mo 10,Which of the following…

A: 9. Out of the given elements, d, Molybednum(Mo) is in Group 6B of the periodic table. Molybednum is…

Q: Which two elements on the periodic table are in the same period? OH, Na O B, Ga OK, Sc He, Ne

A: Which two elements on the periodic table are in the same period = ?

Q: rlag+ 2 = Pbso, - ZH0 +15I + 2H0 +L46 +L44 +142 +136 - 2H0 +123 +L7 - NOgi + 2H0o +0.30 +77 +054…

A: In Spontaneous reaction,  element which have higher reduction potential has tendency to reduce while…

Q: Consider Cr-54, Fe-54, Fe-58 and Ni-58 , which of this are isobars and which are isotopes

A:

Q: The number of electrons and protons in Fe*2 are(atomic number=26)

A: Given :- Fe+2  Atomic number of Fe = 26  To find out :- number of electrons and protons.

Q: Ca^2+ and S^2- as a chemical formula

A:

Q: Two common oxides of iron are FeO and Fe2O3. Based on this information, tell how you would predict…

A: Iron has two common oxidation state, Fe2+ and Fe3+. To differentiate between Fe2+ and Fe3+ in…

Q: 3. Which of the following is NOT found in group 13? A boron (B) B gallium (Ga) © indium (In) D…

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

Q: Beryllium has an atomic number of 4. How many neutrons does the isotope beryllium-9 have? O 4 O 13 9…

A: * Atomic number = Number of protons  For the neutral atom , Number of electrons = number of protons…

Q: While the most common isotope of nitrogen has a mass number of 14 (nitrogen-14), a radioactive…

A: a) Since the isotopes are defined as the elements with same atomic number but different mass number.…

Q: 1. Which element belongs to Group 4A? ○ calcium ○ carbon ○ selenium ○ chromium 2. Which of the…

A: 1) The element that belongs to Group 4A has to be identified. The given elements are Calcium,…

Q: Can someone please fill this out for N2-? In my mind ther are 11 electrons. Nitrogen has 5 valence…

A:

Q: 3. Write the symbol or formula from each element •backward water •hydride of brominę •cobalt (II)…

A: Molecular formula of the given compounds.   As per our guideline we have to answer first three…

Q: Select the single best answer. Which of the following elements would you expect to be most metallic?…

A: Metal has tendency to donates its electron easily while non-metal has tendency to gain electron…

Group 14 Elements

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