Atomic Structure and the Periodic Table Flashcards Preview

GCSE Chemistry AQA > Atomic Structure and the Periodic Table > Flashcards

Flashcards in Atomic Structure and the Periodic Table Deck (20)
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1
Q

What is the charge of a proton?

A

Positive (1+)

2
Q

Elements contain more than one type of atom. TRUE or FALSE?

A

False

3
Q

Give the formula for carbon dioxide.

A

CO2

4
Q

Give the formula for sodium carbonate.

A

NaCO3

5
Q

Balance this equation…

Mg + O2 > MgO

A

2Mg + O2 > 2MgO

6
Q

What is the difference between a compound and a mixture?

A

A compound is multiple elements that have been chemically bonded together.

7
Q

Which method of separation would be useful to separate an insoluble solid from a liquid?

A

Filtration.

8
Q

Which method of separation would be useful to separate a soluble solid from a liquid?

A

Evaporation

9
Q

Which method of distillation would be used to separate liquids with similar boiling points?

A

Fractional distillation

10
Q

Who discovered that the plum pudding model was wrong?

A

Rutherford

11
Q

Why did Mendeleev leave gaps in the Periodic Table of Elements?

A

Because he hadn’t discovered all the elements yet.

12
Q

How are the group number and the number of electrons on the outer shell linked?

A

They are the same e.g. a group one element would have one electron on the outer shell

13
Q

What kind of ions do metals form?

A

Positive ions.

14
Q

Where are non-metals in the periodic table?

A

The right side.

15
Q

Stare three trends as you go down group 1.

A

Boiling point decreases
Relative atomic number increases
Reactivity increases

16
Q

What is the charge of the ions that halogens form when they react with metals?

A

1- ions called halides

17
Q

What is the trend in boiling point as you go down group 0?

A

The boiling point increases

18
Q

Atomic number = ?

A

number of protons the atom has

19
Q

Atomic mass = ?

A

The number of protons plus the number of neutrons.

20
Q

isotope = ?

A

Atoms that have the same number of protons but different numbers of neutrons