Atoms
Periodic Table
This week Energy Changes
Bonding
Biology Cells
100

Only one type of atom

What is an element?

100

Group 1

What group are the alkali metals also know as?

100

energy is lost to the surroundings?

What happens to energy in an exothermic reaction?

100

Delocalised electrons that carry charge through the stricture

Why are metals good conductors of energy?

100

Ribosome

What part of a cell makes proteins?

200

2,8,8

How many electrons do the first shells hold if full?

200

Has 2 electrons in its outer shell

How many electrons in the outer shell of group 2 elements?

200


What does the energy profile diagram look like for an endothermic reaction?

200

ionic bond

What type of bond forms between metals ions and non-metal ions?

200

Chromosomes or Genetic information

What does the nucleus contain?

300

Nucleus

Which part of the atom contains protins and neutrons? 

300

Mendeleev

Who created the modern periodic table?

300

A is correct

What letter is the activation energy?

300

The metal ion and non-metal ion form have a strong electrostatic force of attraction (strong bond)  that requires a lot of energy to break

Why do ionic compounds have high melting points?

300

large surface area to absorb water at a faster rate

What is an adaptation of a root hair cell to aid its function?

400

Number of protons equal number of electrons

Why does an atom have no overall charge?

400

He left gaps

What did Mendeleev do for undiscovered elements?

400

Sports injury pack

What is an everyday use of an endothermic reaction?

400

The weak intermolecular forces require less energy to overcome

Why do small covalent molecules have low melting points?

400

Missing a nucleus so it can carry more oxygen

What adaptation does a red blood cell have to aid its function?

500

Atoms with the same number of protons but a different number of neutrons?

What is an isotope?

500

Decreasing in reactivity as you go down the group

Describe the reactivity of group 7 (halogens)

500

Thermal decomposition

What type of reaction is endothermic?
500

Each carbon bonds to 4 other carbons

Why is diamond hard?

500

Streamlined to move faster

What is an adaptation of a sperm cell?

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