Radioactivity and Test for anions

A white precipitate forms when an unknown salt is reacted with barium chloride. What is the anion?

• sulphate

• chloride

• bromide

• carbonate

What gas is formed when a carbonate reacts with an acid

• oxygen

• carbon dioxide

• hydrogen

• chlorine

What would you observe if carbon dioxide gas is bubbled through limewater

• a white precipitate forms

• the limewater goes cloudy/milky

• the limewater goes clear

• the limewater goes colourless

What is an anion's charge?

• positive

• negative

• neutral

• depends on the element's charge

Is the process in which an unstable atomic nucleus emits charged particles and energy 

• radioactivity 
• radioisotope
• beta decay
• background radiation 

Tags

NGSS.HS-PS1-8

True or False:  During nuclear decay atoms of one element can change into atoms of a different element altogether. 

• True
• False

An isotope of an element has the same number of _________, but a different number of _________.

• Protons, electrons
• Protons, neutrons
• Electrons, neutrons

Tags

NGSS.HS-PS1-8

What is emitted during Beta Radiation?

• Electron.

• Protons.

• Neutrons.

• Nuclei

Tags

NGSS.HS-PS1-8

Has the symbol

• Alpha
• Beta 
• Gamma

Radiation can cause what?

• Superpowers
• Cancer
• Headaches
• The flu

Tags

NGSS.HS-PS4-3