Atoms, Periodic Table, and Solids, Liquids & Gases

If Calcium has an atomic number 20 and atomic mass of 40, how many protons does Calcium have?

What state/phase of matter has a definite volume but no definite shape?

Which particle has no charge?

Which element has 6 valence shells?

What causes particles to vibrate or move around more?

What causes a change in state/phase?

Which element is stable?

Which element is a metalloid?

The Kinetic Theory explains that all particles are in constant ______________?

Which element has 11 valence electrons?

Which subatomic particle identifies the element?

Which subatomic particle has a positive charge?

Which element is the most reactive?

Which subatomic particle is located outside the nucleus?

Which 2 elements have the same number of outer shells(valence)?

What state/phase of matter has no definite shape or volume?

If Lithium has 5 neutrons and the atomic mass is 9, how many protons does Lithium have?

An atom has 18 protons and 8 valance electrons. Which statement best describes this element?

If Lithium has 5 neutrons and the atomic mass is 9, how many electrons does Lithium have?

Which 2 elements are in the same period?

Which 2 elements have the same number of valance electrons?

What subatomic particle has a negative charge?