SPM - Periodic Table and Its Elements

In an element box, the number at top is the

• atomic number

• atomic name

• atomic mass

• atomic symbol

Tags

NGSS.HS-PS1-1

The horizontal rows on the periodic table are called

• groups

• families

• periods

• atomic numbers

The atomic number of an element tells the number of _____ in the nucleus of an atom of that element.

• protons
• neutrons
• electrons
• isotopes

Isotopes are atoms of the same element with different numbers of

• electrons

• neutrons

• protons

• nuclei

Tags

NGSS.HS-PS1-8

The elements that touch the zigzag line on the Periodic Table are called

• metals

• nonmetals

• metalloids

• gasses

Tags

NGSS.HS-PS1-1

Table shows the relative atomic masses of two elements, H and J. Element H and J are located in Group 1 of the Periodic Table. Which statements is true about elements H and J?

• H is more electropositive than J

• The melting point of J is higher than that of H

• The number of valence electrons in atom J is more than that of atom H

• J reacts with cold water more vigorously than H

Which statements is correct about the alkali metals when going down Group 1 in the Periodic Table?

• The reactivity decreases

• Strength of nucleus to attract an electron into the valence shell increases

• Electropositivity decreases

• The single valence electron becomes more weakly pulled by the nucleus

Group 1 elements only form ….. Ion

• 1+

• 1-

• 2+

• 2-

6.15: Which of these is not a property of noble gases?

• Colourless

• Odourless

• Flammable

• Gas at room temperature

Tags

NGSS.HS-PS1-1

Name the group that contains inert (nonreactive) elements.

• noble gases
• halogens
• alkali metals
• alkaline earth metals

Tags

NGSS.HS-PS1-1