8Fa Dalton's Atomic model beta - Katie Bruce | Biblioteka

1

Dalton’s atomic model suggests that atoms of the same element are:

Always different in size

Identical in mass and properties

Made up of protons and neutrons

Always positively charged

1

Which of the following is true about atoms in different elements, according to Dalton?

They all have the same mass

They have different masses

They can change into atoms of other elements

They have no charge

1

Which of these symbols represents the element oxygen?

O

Ox

Og

O₂

1

What does Dalton’s theory say about atoms during a chemical reaction?

Atoms are created and destroyed

Atoms are rearranged into new combinations

Atoms lose all their mass

Atoms combine to form new atoms

1

Which of the following describes a typical pure metal?

Poor conductor of electricity

Brittle

Shiny and malleable

Low melting point

1

Which of the following elements is a non-metal?

A) Magnesium (Mg)

B) Sodium (Na)

C) Carbon (C)

D) Iron (Fe)

1

What is the symbol for the element nitrogen?

A) N

B) Ni

C) Na

D) Ne

1

Which property is common among non-metals?

A) High melting points

B) Good electrical conductors

C) Dull

D) Malleable

1

Which of the following elements is a metal?

A) Oxygen (O)

B) Hydrogen (H)

C) Zinc (Zn)

D) Neon (Ne)

1

What is the physical state of mercury (Hg) at room temperature?

A) Solid

B) Liquid

C) Gas

D) Plasma