Hertswood Academy Gcse Chemistry C1 1-Fundamental Ideas

Front 1

1. What is an element?

Back 1

* A substance made up of only one kind of atom

Hint 1

A substance made up of only...

Front 2

2. What is a compound?

Back 2

* 2 or more different elements chemically joined/bonded together

Hint 2

2 or more...

Front 3

3. What are the names of the 3 subatomic particles?

Back 3

* Proton
* Neutron
* Electron

Hint 3

* P
* N
* E

Front 4

4. What 2 particles are located in the nucleus?

Back 4

* Protons and neutrons

Front 5

5. Where are the electrons found?

Back 5

* In shells/energy levels around the nucleus

Front 6

6. What charge does a proton have?

Back 6

* Positive or +

Hint 6

* P for proton, P for ...

Front 7

7. What charge does a neutron have?

Back 7

* No charge or neutral or 0

Hint 7

* Neutron ... Neut ...

Front 8

8. What charge does an electron have?

Back 8

* Negative or -

Front 9

9. Why are elements said to have no overall charge?

Back 9

* They have equal numbers of protons and electrons. The charges cancel out

Front 10

10. What is the mass of each subatomic particle?

Back 10

* Proton = 1
* Neutron = 1
* Electron = 0

Front 11

11. What is the atomic number?

Back 11

* The number of protons (bottom number)

Front 12

12. What is the mass number?

Back 12

* The number of protons and neutrons added together (top number)

Front 13

13. What is an isotope?

Back 13

* An atom of the same element with a different number of neutrons

Front 14

14. How are the electrons arranged in shells around the nucleus?

Back 14

* 1st shell holds up to 2 electrons
* 2nd shell holds up to 8 electrons
* 3rd shell holds up to 8 electrons
* 4th shell holds up to 8 electrons

Front 15

15. How does the electronic configuration identify where elements are found in the periodic table?

Back 15

* The group number is the same as the number of electrons in the outer shell (e.g. all Group 1 elements have 1 electron in the outer shell)

Hint 15

* All Group 1 elements have ...
* All Group 2 elements have ...

Front 16

16. Elements in the same group have similar what?

Back 16

* Chemical properties. They all behave and react in a similar way

Front 17

17. What are the elements in Group 0 known as?

Back 17

* The nobel gasses

Front 18

18. Why are they unreactive?

Back 18

* They have a full outer shell of electrons

Front 19

19. Why do elements bond together to form molecules or compounds?

Back 19

* To gain a full outer shell by transfering (ionic) or sharing (covalent) electrons

Front 20

20. What type of elements form ionic compounds?

Back 20

* Metals and non-metals

Front 21

21. What type of elements form covalent bonds?

Back 21

* Non-metals and non-metals

Front 22

22. How can we represent chemical reactions?

Back 22

* Balanced symbol equations and word equations

Front 23

23. What are the reactants?

Back 23

* What is put into a chemical reaction (the stuff you start with)

Front 24

24. What are the products?

Back 24

* What is produced in a chemical reaction (the stuff you make)

Front 25

25. What can we say about the mass of the reactants and products?

Back 25

* It is the same before and after the reaction (mass is conserved)