Unit 7 Part 1 Test Review

What two particles are always in the nucleus of the atom?

• proton

• neutron

• electron

• nucleus

What particle tells what element an atom is?

• proton

• neutrong

• electron

Which atom contains 12 protons?

• Ca

• Na

• Mg

• F

The properties of Magnesium are most similar to that of-

• hydrogen

• Potassium

• Calcium

• Carbon

What is the mass of an element that contains 4 electrons, 4 protons, and 5 neutrons?

• 13

• 4

• 5

• 9

What is the atomic number of the element that has 45 protons, 58 neutrons, and 45 electrons?

• 45

• 58

• 103

• 90

Most of the elements on the periodic table are what type of elements?

• metals

• nonmetals

• metalloids

• noble gases

What type of elements are solid, good conductors of electricity, and react with water and oxygen?

• nonmetals

• metalloids

• metals

• halogins

Which two subatomic particles are always the same?

• protons

• neutrons

• electrons

• nucleus

Which two particles have about the same mass?

• protons

• neutrons

• electrons