5th - Science Unit 1 Lesson 1 updated

Question 0

What is one important property of an element at room temperature?

Answer 0

State of matter

Question 1

What is a substance that cannot be broken down into simpler substances?

Answer 1

Element

Question 2

Another important property of an element is the way that it does what with other elements?

Answer 2

Reacts

Question 3

What is the smallest unit of an element that has that element’s properties?

Answer 3

Atom

Question 4

What is the center of an atom?

Answer 4

Nucleus

Question 5

What are the particles called in an atom’s nucleus that have a positive charge?

Answer 5

Protons

Question 6

What are the particles called in an atom’s nucleus that have no electric charge?

Answer 6

Neutrons

Question 7

What are the particles that move around the nucleus that have a negative charge called?

Answer 7

Electron

Question 8

What two things do atoms need to have the same number of to have no overall charge?

Answer 8

Electrons and Protons

Question 9

What is the number of protons in an atom called?

Answer 9

Atomic number

Question 10

An atom’s protons and neutrons have about the same mass, which is called what?

Answer 10

Atomic mass unit or amu

Question 11

If you add up the mass of all the protons and neutrons in an atom, what do you get?

Answer 11

Atomic mass

Question 12

What are two or more atoms joined into a single particle called?

Answer 12

Molecule

Question 13

Molecules have properties that are different than the what that they are formed from?

Answer 13

Elements ?

Question 14

Dmitri Mendeleev created what?

Answer 14

The Periodic Table of elements

Question 15

The periodic table’s columns group elements according to their what?

Answer 15

Atomic numbers

Question 16

Special microscopes use what to show the arrangement of atoms?

Answer 16

Electrons

Question 17

What is the name of the microscope that uses a needle that is so sensitive that it can show single atoms?

Answer 17

The scanning tunneling microscope

Question 18

What is matter made of?

Answer 18

Elements

Question 19

Which element is most likely to be dull? Carbon, Aluminum, Mercury, or Sodium

Answer 19

Carbon because it is a nonmetal

Question 20

What are the properties of metals?

Answer 20

Shiny, luster, conductivity, and flexibility

Question 21

What are the properties of nonmetals?

Answer 21

Poor conductivity, dull, and brittle

Question 22

Be able to list the properties of elements.

Answer 22

One important property of elements is the state of matter at room temperature (solid, gases, or liquid). Another property of elements is the way they combine with other elements.

Question 23

What makes up an atom?

Answer 23

An atom is made up of the NUCLEUS (the center of the atom) which includes PROTONS and NEUTRONS and ELECTRONS which move within the space outside the nucleus.

Question 24

What charge do the protons have?

Answer 24

They have a positive electric charge.

Question 25

What charge do the neutrons have?

Answer 25

They have NO electric charge.

Question 26

What charge do the electrons have?

Answer 26

They have a negative electric charge.

Question 27

Where are the protons located?

Answer 27

In the nucleus of an atom.

Question 28

Where are the neutrons located?

Answer 28

In the nucleus of an atom.

Question 29

Where are the electrons located?

Answer 29

Within the space outside the nucleus of an atom.

Question 30

How do you find the atomic number of an element?

Answer 30

The atomic number of an element is the number of protons in it. ????

Question 31

Be able to explain why atoms usually have no charge.

Answer 31

Usually the number of electrons and protons are equal, so atoms have no overall charge.

Question 32

How do you find the atomic mass unit or amu of an element?

Answer 32

To find the amu of an element, you add the number of protons and neutrons together.

Question 33

Be able to find the atomic mass unit of an element.

Answer 33

P. 26 - 27

Question 34

Where do atoms link to form molecules?

Answer 34

When a molecule forms from elements, atoms link together through their electrons.

Question 35

How are elements classified in the periodic table?

Answer 35

There are four classification on the periodic table - metal, metalloid, nonmetal, and artificial.

Question 36

Be able to read a box from the periodic table and answer questions.

Answer 36

P. 26-27.

1. Element Name
2. Element Symbol
3. Atomic Number

Question 37

Know what an electron microscope examines.

Answer 37

Special electron microscopes use electrons instead of light particles to examine a sample. They can show single atoms, or the arrangement of atoms.