8Fa Dalton's Atomic model gamma

Last updated 5 months ago

10 questions

Last updated 5 months ago

10 questions

Question 1

Which statement about Dalton's atomic model is correct?

Atoms can be divided into smaller parts

Atoms of the same element can have different masses

Atoms of different elements combine in simple whole-number ratios

Atoms have a nucleus made of protons and neutrons

Question 2

Atoms can be created or destroyed

Atoms are rearranged in chemical reactions but not changed

Atoms disappear after chemical reactions

Atoms change into new atoms during reactions

Question 3

Oxygen and Magnesium 

Fluorine and Neon 

Carbon and Potassium 

Helium and Lithium 

Question 4

High density

Conduct heat and electricity well

Form acidic oxides

Malleable and ductile

Question 5

Elements with higher atomic mass are always gases

Elements with lower atomic mass are always liquids

Elements with similar atomic masses are in the same physical state

There is no direct relationship between atomic mass and physical state

Question 6

Argon – gas at room temperature

Silver – shiny, good conductor of electricity

Gold – heavy, soft metal

Aluminium – light, strong metal

Question 7

Atoms of different elements cannot combine

Compounds are made when atoms lose electrons

Compounds are made of atoms of different elements combined in fixed ratios

Compounds form when atoms merge into one

Question 8

Sodium (Na) – 11

Carbon (C) – 6

Potassium (K) – 19

All of the above

Question 9

Question 10

10.

A) Lead (Pb)

B) Sulfur (S)

C) Phosphorus (P)

D) Calcium (C)

Question 1

Atoms can be divided into smaller parts

Atoms of the same element can have different masses

Atoms of different elements combine in simple whole-number ratios

Atoms have a nucleus made of protons and neutrons

Question 2

Atoms can be created or destroyed

Atoms are rearranged in chemical reactions but not changed

Atoms disappear after chemical reactions

Atoms change into new atoms during reactions

Question 3

Oxygen and Magnesium 

Fluorine and Neon 

Carbon and Potassium 

Helium and Lithium 

Question 4

High density

Conduct heat and electricity well

Form acidic oxides

Malleable and ductile

Question 5

Elements with higher atomic mass are always gases

Elements with lower atomic mass are always liquids

Elements with similar atomic masses are in the same physical state

There is no direct relationship between atomic mass and physical state

Question 6

Argon – gas at room temperature

Silver – shiny, good conductor of electricity

Gold – heavy, soft metal

Aluminium – light, strong metal

Question 7

Atoms of different elements cannot combine

Compounds are made when atoms lose electrons

Compounds are made of atoms of different elements combined in fixed ratios

Compounds form when atoms merge into one

Question 8

Sodium (Na) – 11

Carbon (C) – 6

Potassium (K) – 19

All of the above

Question 9

Question 10

10.

A) Lead (Pb)

B) Sulfur (S)

C) Phosphorus (P)

D) Calcium (C)