Matter and the periodic table

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Physical and chemical properties are listed below malleable brittle highly combustible and has free electrons which 2 of these properties apply to most elements that conduct heat

1 and 4

An atom of the element fluorine can be represented by the Bohr model below if the atomic mass of this atom is 19 how many neutrons are in the nucleus

10

Which best describes the structure of fluorine 19

2 balance electrons in the 1st level 7 electrons in the 2nd level

The alkaline earth metal elements are in the same family in the periodic table because they all have

2 valence electrons

An enclosed 20 ml cylinder was filled with a gas sample at room temperature the sample then was transferred to an empty 40 ml enclosed container also at room temperature after being transferred the volume of the gas was

40 ml

Oxygen belong to a group 16 in the periodic table which atom most likely has properties similar to those of oxygen

A

Oxygen belongs to group 16 in the periodic table which atom most likely has properties similar to those of oxygen

A

Which of these will separate a saltwater solution

Allowing the water to evaporate

Trudy made a pitcher of lemonade she added the lemonade crystals to a pitcher of water which diagram best represents the liquid water molecules

B

Which element has properties most similar to calcium

Barium

The electron dot diagram of calcium and magnesium are shown both elements have the same number of valence electrons in what other way are these elements the same

Both elements are in the same group on the periodic table

A group of students is investigating 2 substances to determine which is table salt and which is table sugar how would the student best identify each substance

By examining the shape of the crystal

A sample in a cylinder container has a cylindrical shape and a fixed volume the state of matter of the sample

Could be either solid or liquid

Which Lewis dot diagram correctly represents the anion of sulfur S -2

D

Due to their electron structure what do these 2 atoms have in common

Family

Which of the following properties is a chemical property

Flammable

Which of these gaseous elements is the least reactive

Helium

Which best describes an atom

It has 6 electrons

Propane is a gas at room temperature which statement best describes the physical characteristics of a sample of propane at room temperature

It has an indefinite volume and takes shape of its container

Which statement best describes a liquid sample

It will retain its volume if transferred to a larger container

How does a piece of papers ability to be folded in half compare to its ability to burn

It's ability to be folded is a physical property while its ability to burn is a chemical property

The boiling point of nitrogen is -196 C what states of matter are involved when nitrogen boils

Liquid to gas

4 different liquids will be separately poured into a single beaker the liquids are ethanol milk oil and water the density for each liquid at room temperature is listed in the table below how will the liquids be arranged from bottom to top in the beaker

Milk water oil ethanol

When Ice begins to melt at 0 C water molecules

Move more freely in relation to each other

The Lewis dot diagram for an unidentified element is shown below which element could represent x

Oxygen

Which element is most likely to gain 2 electrons when it forms an ion

Oxygen

Which of these elements is the most chemically reactive

Radium

Which of the following is a chemical property of a substance

Reacts with HCI

Potassium is a very reactive metal and doesn't occur freely in nature a diagram of a potassium atom is shown below which element will have properties most similar to those of potassium

Sodium

Which information about the elements support this hypothesis

Sodium has the same balance electron structure as lithium

The drawings below represent the particles in a sample of matter that underwent a change in state based on the drawings the change in state was most likely

Solid to gas

Which is a common property if he and ne

The electrons structure supports inactivity

Which statement best describes a 50 ml sample of liquid in a 100 ml sealed container

The liquid has the same shape as its container

Which of the following is a property shared by the elements in the carbon family

The number of valence electrons

The table below shows the properties of calcium metal which statement characterizes the properties of calcium based on the table

The reactivity of calcium is a chemical property because it involves a change in the chemical composition

The alkali metal family of elements easily forms compounds with the halogens which explains why they form compounds so easily

They have 1 electron in their outer orbital which they readily use

The elements fluorine chlorine and iodine are all in the same column on the periodic table which best explains this arrangement

They have the same number of valence electrons

A sample of unknown substance has a volume that is independent of its container which additional information is needed to determine the state of the sample

Whether the sample has a fixed shape

A sample of an unknown substance takes the shape of its container which question needs to be answered to provide the additional information required to determine the state of the sample

Will it expand to the volume of a larger container

The drawing below shows 3 sealed containers labeled X Y and Z each contains a sample of matter in a different state based on the information which statement most likely represents the state of matter in each container

X contains a liquid y contains a gas and z contains a solid


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