OCR GCSE Gateway Additional Science C4 (foundation) Atoms and Periodic Table basics

Question 1

Flourine has 9 electrons, which of these are the correct electron arrangements for it?

Accepted Answer

2,7

Question 2

The image below is a dot and cross diagram, is it for ionic or covalent bonding?

Accepted Answer

ionic

Question 3

Electrons are arragned in different energy levels, these energy levels are also known as .....

Accepted Answer

Orbits, Shells

Question 4

An istope is a different version of an element that has a different number of.........

Accepted Answer

Neutrons

Question 5

Hydrogen has the mass number 1 and atomic number 1, this means it has.........

Accepted Answer

One proton only

Question 6

The periodic table displays all elements, what factor determines which column elements are in?

Accepted Answer

number of electrons in outer shell of atom

Question 7

Copper (Cu) is an element , which of these are untrue about copper....

Accepted Answer

Copper is made of Carbon(C) and Uranium(U)

Question 8

Ionic substances dissolve in solution and the ions seperate, this means that ionic substances?

Accepted Answer

Conduct electricity when molten or in solution only

Question 9

The carbon atom shown in the image has............

Accepted Answer

has the mass number of 12, the atomic number of 6

Question 10

In an atom what sub atomic particle is found orbitting the nucleus?

Accepted Answer

Electron

Question 11

whci of these electron arrangements are incorrect for elements?

Accepted Answer

2,8,7,2, 1,8,7, 2,7,8

Question 12

The diagram below shows a dot and cross for Oxygen, which of the statements are untrue?

Accepted Answer

Oxygen forms ionic bonds with other oxygen atoms

Question 13

The period an element is in is also known as it's......

Accepted Answer

row

Question 14

A postive ion is formed when these structures move between atoms

Accepted Answer

electrons

Question 15

The charge of the nucleus of an atomis always.......

Accepted Answer

Positive

Questions 15