Test - Atoms and The Periodic Table

Question 1

How is an Atom Structured

Answer 1

Nucleus in the middle, contains protons and neutrons inside. with electrons on electrons shells outside the nucleus.

Question 2

Explain the characteristics of the nucleus

Answer 2

contains protons and nuetrons

Question 3

Characteristics of protons

Answer 3

Large, Positive charge, in nucleus

Question 4

characteristics of electrons

Answer 4

small, on energy levels, negative charge, not in nucleus

Question 5

characteristics of nuetrons

Answer 5

neutral charge, large, in nuclues

Question 6

characteristics of quarks

Answer 6

particle that make up protons and nuetrons

Question 7

What is an isotope

Answer 7

The same element with a different number of nuetrons

Question 8

what are valence electrons? exceptions?

Answer 8

Electrons on the outermost energy level, hydrogen is an exception

Question 9

Why is an atom mostly empty space? Where is the mass of an atom located?

Answer 9

Atoms contain elections with minimal mass, the mass is located in the nucleus

Question 10

Who is Proust?

Answer 10

law of definite proportions

Question 11

who is dalton

Answer 11

he founded the atomic theory

Question 12

who is bohr

Answer 12

developed the model with electrons shells

Question 13

Who is thomson

Answer 13

Discovered the electron

Question 14

who is rutherford

Answer 14

plum pudding model

Question 15

who is chadwick

Answer 15

discovered the nuetron

Question 16

What is a Bohr diagram?

Answer 16

show electrons orbiting the nucleus of an atom somewhat like planets orbit around the sun.

Question 17

What is an electron dot diagram?

Answer 17

diagrams in which the valence electrons of an atom are shown as dots distributed around the element’s symbol

Question 18

How is the periodic table originally organized and how is it currently organized?

Answer 18

it used to be arranged by atomic mass, but now it is arranged by atomic number

Question 19

How do elements within a group compare to each other?

Answer 19

They have the same physical and chemical properties

Question 20

How do elements within a period compare to each other?

Answer 20

they have the same amount of valence electrons

Question 21

How do the periodic table and valence electrons and energy levels relate to each
other?

Answer 21

The energy level of an atom’s valence electrons is directly related to its period in the periodic table

Question 22

What makes an element radioactive?

Answer 22

When an atom doesn’t not have the same number of protons and electrons

Question 23

What are three of the main elements that make up our body?

Answer 23

Oxygen and Hydrogen

Question 24

What is the difference between fission/fusion?

Answer 24

Fission splits, fusions puts together

Question 25

What is nuclear energy and what are arguments for and against the use in our world?

Answer 25

While it is a cleaner alternative to fossil fuels, this type of power is also associated with some of the world's most dangerous and deadliest weapons.

Question 26

What are atomic bombs and what are arguments for and against the creation of these weapons?

Answer 26

They are nuclear weapons, the arguments are that they are destructive and deadly

Question 27

How was radium used in everyday life and what happened to those women exposed?

Answer 27

Radium was used on clocks and watches, and in factories. The women who were exposed suffered radium poisoning and painful, early deaths

Question 28

what are metals

Answer 28

an element that form positive ions and has metallic bonds

Question 29

what are non-metals

Answer 29

a chemical element that mostly lacks distinctive metallic properties.

Question 30

what are metaloids

Answer 30

whose properties are intermediate between those of metals and solid nonmetals or semiconductors.