Test flash cards

Which of the following is not a metal? H, Al, B, Re

B

___ is th first element at the top of the stair step.

Boron

Determine which atom is being described here: shiny, has the properties of both metals and no metals, and has three valence electrons. J

Boron (B)

Which two elements are in the same Period

Boron and Carbon

The physical property ____ describes when a material breaks or shatters easily.

Brittle

What do we call an object that shatters when struck by a hammer?

Brittle

The simplest substance out of these is? Carbon, born, an element

An element

What do elements in the same period have in common?

Energy level

True or false? Neutrons have a negative charge.

False

True or false? One property of nonmetals are that they are good conductors of electricity

False

Sodium (Na) is a highly reactive element. Which characteristics of sodium is responsible for its reactivity.

It has one valance electron

Metals are found on the ____ side of the periodic table

Left

The way a metals surface reflects light is called ___

Luster

What physical properties are used to describe nonmetals, metals, and metalliods?

Luster, conductivity, malleability

When an object changes shape when struck by a hammer, it is called?

Malleable

Which of the following IS a property of metals? Brittle, malleable, dull, insulator.

Malleable

____ refers to the way a metal can be hammered or rolled into thin sheets

Malleable

How do you get the number of neutrons in an atom

atomic mass - atomic number

Do groups go across or down?

down

Which subatomic particle has a negative charge?

electron

What do we call columns on the periodic table

groups

Which subatomic particle has a positive charge?

proton

The periodic table has ___ groups

18

The periodic table has ___ periods

18

How many electrons does oxygen need to be stable

2

What is the number of protons in an atom if the atomic number is 7

7

How many electrons do atoms need to be stable

8

There are __ elements on the on the periodic table that are classified as metals

88

When a material allows electricity to heat or flow easily through it, it is said to be a good _____

Conductor

Luster, hard, malleable, and dull are all elements of an atom except?

Dull

Which of the following is NOT a characteristic of most metals? ductile, Malleable, good conductor, dull

Dull

Which subatomic particle is located outside the nucleus

Electron

What do we call columns on the periodic table

Groups

An _____ does not allow electricity or heat to flow through it easily

Insulator

This group of elements sit along a zigzag line on th periodic table and have properties of both metals and nonmetals

Metalliod

Which group of elements could have the characteristics of luster (shiny) nonmetals, metalliods, metals, metalliods/metals.

Metalliods/metals

What is a good conductor of heat

Metals

Which subatomic particle has no charge

Neutron

Which group of the periodic table is composed of inert (not reactive) gases

Noble gases

I have an object that is dull, brittle, and an insulator. What is it?

Nonmetal

This group of elements has properties that are opposite those of metals

Nonmetals

The central region where it's neutrons and protons are located.

Nucleus

Rows on the period table are called _____ while columns are called _____

Periods, groups

____ are things you can observe and describe about matter

Physical properties

Which subatomic particle identifies the element

Proton

Name the subatomic particles inside the nucleus

Proton or neutron

The atomic number of an element is the total number of which particles in the nucleus? Electrons, protons, neutrons, or valence electrons.

Protons

The positive particles of an atom

Protons

Most metals are ____ at room temperature

Solid

List 5 physical properties of all matter

Texture, color, odor, density, luster

An atom has 18 protons and 8 valence electrons. Which statement would best identify this element?

The element is "happy" or stable because it outer energy level is filled.

Describe What luster means.

The way an object reflects light

True or false? Some characteristics of metals is that they are malleable and ductile.

True

Do periods go across or down?

across

Copper

metal

Gold

metal

Silver

metal

Sodium

metal

Arsenic

metalloid

Silicon

metalloid

Chlorine

nonmetal

Helium

nonmetal

Oxygen

nonmetal

What do we call rows on the periodic table?

periods