study

Question 1

What is an atom?

Answer 1

The smallest unit of an element that displays the properties of that element

Question 2

Why do atoms form ions?

Answer 2

Atoms form ions when they gain or lose electrons so that the outer orbit shell is full. They form ions because without a full orbit shell the atoms are not stable

Question 3

What does the atomic number tell us?

Answer 3

It indicates the number of protons in that atom

Question 4

How do we find the number of neutrons in an atom?

Answer 4

The mass number

Question 5

What are 4 pieces of information included in the Bohr-Rutherford diagram

Answer 5

Number of neutrons, protons, electrons and atomic number

Question 6

Which way do periods go?

Answer 6

horizontal

Question 7

Which way do families/groups go

Answer 7

vertical

Question 8

What is the name of the elements in group 1?

Answer 8

The alkali metals

Question 9

What is the name of the reactive elements in group 17?

Answer 9

The halogens

Question 10

What are valence electrons?

Answer 10

The electrons on the outermost orb

Question 11

How many valence electrons do Alkaline earth metals have?

Answer 11

2

Question 12

How many valence electrons do noble gases have?

Answer 12

8

Question 13

What’s the difference between an atom and an ion?

Answer 13

A atom are neutral(same amount of protons and neutrons) ions are charged (positive or negative

Question 14

How does an atom form a positive ion?

Answer 14

Losing electrons will make it a positive ion

Question 15

How does an atom form a negative ion?

Answer 15

Gaining electrons will make the ion negative

Question 16

Do noble gases form ions?

Answer 16

No they do not form ions as there orbital shell is full

Question 17

How does an ionic compound form?

Answer 17

When there is a compound of a metal and a nonmetal

Question 18

What pieces of information are included in an ion notation?

Answer 18

Mass number, element symbol, atomic number

Question 19

How is a molecular compound different from an ionic compound?

Answer 19

Molecular compound are formed between nonmetals and non-metals where ionic compounds are formed by metals and non-metals

Question 20

What are ions?

Answer 20

Ions are formed when atoms gain or lose electrons, it is a charged atom or molecule

Question 21

What are positively charged ions called?

Answer 21

cation

Question 22

What are negatively charged ions called?

Answer 22

anion

Question 23

Describe the properties of metals, metalloids, and nonmetals

Answer 23

Metals: high luster, solid at room temperature, malleable, react with acid, conduct electricity
Non-metals: dull, gas at room temperature, non malleable, pour conductors of heat and electricity
Metalloids: can be shiny or dull, solid at room temperature, some are semiconductors when put at higher temperatures, many are toxic

Question 24

What are the 5 groups on a periodic table?

Answer 24

Group1: Alkali metals-1 valence electron
Group2: alkaline earth metals- 2 valence electrons
Group 3-12:transition metals
Group 17: halogens- 17 valence electrons
Group 18: noble gases- 18 valence electrons