What is the formula for the ionic compound formed by calcium

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Reference no: EM131865159

Questions -

Question 1 - The elements in a column of the periodic table are known as:

Metalloids

A period

Noble gas

A group

Nonmetals

Question 2 - An anion is defined as:

A charged atom or group of atoms with a net negative charge

A stable atom

A group of stable atoms

An atom or group of atoms with a net positive charge

Question 3 - Rutherford's experiment with alpha particle scattering by gold foil established that

Protons are not evenly distributed throughout an atom

Electrons have a negative charge

Electrons have a positive charge

Atoms are made of protons, neutrons and electrons

Protons are 1840 times heavier than electrons

Question 4 - Give the number of protons (p), electrons (e), and neutrons (n) in one atom of chlorine-37.

37 p, 37 e, 17 n

17 p, 17 e, 37 n

17 p, 17 e, 20 n

37 p, 17 e, 20 n

17 p, 37 e, 17 n

Questions 5 - How many protons and electrons are present in one Br^- ion?

35 p, 35 e

80 p, 81 e

35 p, 34 e

35 p, 36 e

80 p, 34 e

Question 6 - What is the formula for the ionic compound formed by calcium ions and nitrate ions?

Ca₃N₂

Ca(NO₃)₂

Ca₂NO₃

Ca₂NO₂

CaNO₃

Question 7 - Which is the correct formula for copper(II) phosphate?

A. Cu₂PO₄

B. Cu₃(PO₄)₂

C. Cu₂PO₃

D. Cu(PO₄)₂

E. Cu(PO₃)₂

Question 8 - The Stock system name for Mn₂O₇ is

Dimanganese heptaoxide

Magnesium oxide

Manganese(VII) oxide

Manganese(II) oxide

Manganese(III) oxide.

Question 9 - Which is the correct formula for lead (IV) chloride?

Pb₄Cl

PbCl₂

PbCl₃

PbCl₄

Pb₂Cl₄

Question 10 - How many electrons, protons, and neutrons does an Iron-55 atom have?

26 e, 26 p, 29 n

29 e, 29 p, 26 n

26 e, 29 p, 26 n

29 e, 26 p, 29 n

26 e, 29 p, 29 n

Reference no: EM131865159

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