Semester 2 physical science exam

Front

Which compound shows a correctly written formula between the atoms shown? Options: AlAr, AlAr₃, AlCl, AlCl₃

Back

AlCl₃

Front

Which element behaves the MOST like calcium and why?

Back

Ba, because it is in the same group and has same number of valence electrons.

Front

Two ions are shown in the model and form a compound. What compound would be formed between the two ions modeled? Options: BF₃, BFl₃, BaF₃, BaFl₃

Back

BF₃

Front

Based on the properties of elements 1, 2, and 3, in which section of the periodic table would you find them? Element 1 Section A Element 2 Section B Element 3 Section C, Element 1 Section C Element 2 Section B Element 3 Section A, Element 1 Section B Element 2 Section A Element 3 Section C, Element 1 Section B Element 2 Section C Element 3 Section A

Back

Element 1 Section A Element 2 Section B Element 3 Section C

Front

When forming a bond, which ion will aluminum form?

Back

+3 ion

Front

Sandy was studying a model of a group of atoms. Which statement is TRUE for the atoms shown?

Back

The mass number of the atoms is different because the number of neutrons is different.

Front

Which of the following statements accurately represents the three atoms shown in the image given?

Back

The three atoms pictured represent a neutral atom, an isotope, and an ion of the same element.

Front

Determine the IUPAC nomenclature for N₂O.

Back

The prefixes should be used for both nitrogen and oxygen.

Front

The following atoms can form a stable ionic compound when the proper number of positive and negative ions combine. Which of the following compounds could be formed by the positive ion depicted if it combines with another element? Options: MgS, KCl, KS₂, MgO

Back

KCl

Front

Which two elements will have similar physical and chemical properties? Br and Se, Ca and Mg, Ge and Se, K and Mg

Back

Ca and Mg