Elements Symbols
Gases
Organisation
Protons, Neutrons & Electrons
General Science
100

Which element has the symbol H?

Hydrogen


100

What is the test for hydrogen?

A lit splint produces a squeaky pop.

100

What do we call the columns in the Periodic Table

Groups

100
Oxygen has an atomic number of 8. How many protons does it have?

8

100
What part of an animal cells contains the DNA?

The nucleus

200

Which element has the symbol Al?

Aluminium

200

What is the test for carbon dioxide?

Lime water turns cloudy.

200

What group is sodium in?

Group 1

200

Xenon has an atomic number of 54. How many electrons does it have?

54

200

What do we call the change from liquid to gas?

Evaporation

300

What is the chemical symbol for sodium?

Na

300

A glowing splint re-igniting is a test for which gas?

Oxygen

300

Who created the Periodic Table?

Dmitri Mendeleev

300

Silver has an atomic number of 47 and a mass number of 108. How many neutrons does it have?

61

300

What unit, with the symbol N, do we use to measure forces?

Newton

400

What is the chemical symbol for potassium?

K

400

Which gas in the Periodic Table starts and ends with the same letter?

Neon

400

Elements in the Periodic Table are arranged in order of what?

Atomic number

400

Sulfur has 16 electrons. How many are in its outer shell?

6

400

Where is the human egg usually fertilised?

Oviduct or Fallopian tube.

600

What three elements in the Periodic Table have symbols that start with F?

Fluorine, Iron and Francium

600

Which gas is the only element not to contain any neutrons?

Hydrogen

600

What do all the elements in Group 7 have in common, regarding their electron configuration?

They all have 7 electrons in their outer shell.

600

Potassium is more reactive than sodium. Why is this?

Its single electron is further away from the nucleus.

600

Magnesium + oxygen  -->  ?

Magnesium oxide