Four identical bonds — why this shape?
Rotate methane. What arrangement keeps its four C–H bonds as far apart as possible?
NoticeThe bonds point toward four corners in 3D.

握住通向物理与生命科学的钥匙
Watch Course Introduction观看课程介绍See what students will learn and experience.▶
Explore Courses & Enrollment课程与报名View current courses and enrollment information.→
Methane has a tetrahedral shape.
ONE STRUCTURE · TWO SURPRISES · H₂O
MEET YOUR TEACHER
Dad of an 8th-grade student at Diamond Middle School
Former University Professor & Principal Investigator
200+ scientific publications · Research & industry experience in molecular drug discovery
WHY THIS MATTERS FOR YOUNG LEARNERSHelping students see, explore, and understand chemistry at the molecular level.

LEXCHEM EXPERIENCE · PARENT
One place to manage your child and course choice.
LexChem ParentWelcome, Demo ParentSet up your family profile, then choose the right learning option.
Child details connect course choices and learning access.
Grade 7
LEXCHEM EXPERIENCE · STUDENT
Learn · Look Up · Explore — together in one environment.
Methane has a tetrahedral shape.
Rotate methane. What arrangement keeps its four C–H bonds as far apart as possible?
LEARN MORE
让孩子的求知欲,连接更广阔的世界
