Midterm 4

Elements in the same column of the periodic table always have the same # of _______ as one another.

• Protons
• Neutrons
• Electrons
• Valence Electrons

Rows on the period table are called _____ while columns are called _____.

• groups, families
• groups, periods
• periods, groups
• families, groups

The Modern Periodic Table of Elements is arranged by

• atomic mass
• atomic number
• valence electrons
• number of isotopes

Which is a halogen?

• Helium
• Chlorine
• Oxygen
• Neptune

Which part of an atom has a positive charge?

• Proton

• Neutron

• Electron

• None of them

Which part of an atom has a negative charge?

• Proton

• Neutron

• Electron

• None of them

Which part of an atom has no charge?

• Proton

• Neutron

• Electron

• None of them

Using the picture from a periodic table, what is the Atomic Number?

• 26

• Fe

• 55.845

• 56

Using the picture from a periodic table, what is the Atomic Mass?

• 26

• Fe

• 55.845

• 56

Calcium has the atomic number 20. If it has a mass number of 46, how many neutrons are present?

• 46

• 20

• 26

• We cannot tell

Tags

NGSS.MS-PS1-1